Google the hidden text.

You can do that.  No problem.  It will be best for wholesale customers.

My comments are designed to be best for retail rankings.  If my connections to wholesale customers are poor then I would use your method.  If my connections to wholesale customers are strong them I would do what's best for retail rankings.  It is simply a matter of choice.

I might also send out some... "Tell a Friend" email messages to past clients.  They can then forward these to friends who may or may not have purchased in the past, but it will get them nice savings on their first purchase from your new domain.

I would make these offers so good that I don't make much money on them.  This is just to get new people to the new domain.  I would send them out in batches so my employees filling orders will not be so swamped that they will have trouble giving their normal fast service.

It would also be a good idea to plan and announce the move. This can be done by:

1. email and mail to important retail and wholesale clients.

2. before redirecting pages the old domain could include obvious messages to retail and wholesale clients, thanking them for their support,  letting them know about the schedule of the move, and asking them to bookmark the new site.

3. inserts in retail shipments

4. special advertising before the move

5. special advertising and email after the move that gives old customers a nice discount when they make their first purchase on the new website.

Personally.  I would not use metarefresh.  I don't know how Google will treat it.

If I wanted to keep as much power as possible on the retail site I would have a plain page with my full internal navigation on it.  It would also have a very clear message for wholesale visitors, that gives them as much time as they need to read, change their directories, and leave by their own action.

OK... thanks for the details.

In that case. I would build newretaildomain.com.   Any pages that have equivalent or near-equivalent content on currentdomain.com would 301 direct page-by-page to newretaildomain.com.

All existing wholesale pages on currentdomain.com would 301 redirect to a new page on newretaildomain.com that explains your new wholesale website and has one outlink to newwholesaledomain.com.   This page will keep all of the power of the wholesale pages on your new retail site, which must be competitive in the SERPs.

This maximizes power of newretaildomain.com and directs anyone who follows links to old pages on currentdomain.com to your new wholesale website.

This would be accompanied by multiple email and snail mail announcements to all wholesale clients.  Sales agents would be trained how to transition.

If this was my biz and currentdomain.com is an appropriate domain for selling retail then I would start a brand new wholesale website and give it one link from the "about us" page on currentdomain.com.  Any wholesale pages on current domain would redirect internally to the "about us" page.  This keeps all of the power of currentdomain.com intact and does not divide it up.

I have a domain that has been on the web for a long time.  It has hundreds of thousands of these links.  If you visit the pages where the links are placed they are rubbish directory-listings or mashup pages that contain paragraphs grabbed here and there from sites across the web.  The websites that host these pages are spam.

I have never disavowed any of them.  I don't worry a bit about them.  The only thing that I have done is add code to my htaccess file that strips parameters off of them.  Google has a service in Webmaster Tools that allows you to exclude parameters, but I'd rather handle it myself with htaccess than rely on Google to do it for me.

I agree with Russ that the anchors are not going to be indexed separately.... but I believe that those anchors are kickass page optimization that is second only behind the title tag.  More info here.

There is a good example of "table of contents" links in this Moz Blog article by John-Henry Scherck.

https://a-moz.groupbuyseo.org/blog/link-prospectors-into-lead-generators

He used bullets and that format is good because his subheadings are long.  Mine are usually short, correspond to keywords and can be separated by pipes.

Contents:  Topic 1  |   Topic 2  |  Topic 3  |  Topic 4

Just my opinion, and others might disagree.... I believe that page anchors are second behind the title tag for onpage optimization.  I believe that Google likes them and if you have a page that is long enough to justify them that some visitors will see them and click them instead of leaving and be taken down the page to the information that they want.

I have lots of pages with onpage anchors.  These pages pull in tons of longtail traffic.  I have been adding them to more pages because I think that they are kickass.

If I was searching for brass widgets and landed on a page and didn't see them in my first view I might leave.  But if I saw a bold obvious link to BRASS WIDGETS I would click it.