How to save original countertop?

Your plastic laminate (Formica is a brand) should have been originally applied with contact cement. Your separation is probably caused from inadequate glue during original installation, exposure to moisture or a combination of both. Before repairing make sure there are no leaks around the window or faucet.

Heating will only give you temporary relief at best. The problem with drilling a hole is you can only get a small amount of glue around the area of the hole. You may need to drill more than one hole to get it to lay flat. Then you have added a defect.

As long as you don't have any moisture problems it is only a cosmetic issue. Unless you just can't stand it, you may be better off leaving well enough alone, especially considering your trepidation.

The only way I know of to truly fix it would be to remove the original laminate and re-glue it. A good local laminate countertop fabricator should be able to come to your place and do this in a day. This should cost you $300 to $400 but maybe more depending on what all there is to contend with.

Sorry, probably not what you wanted to hear. BTW, not to suggest that I know it all but I used to be a certified countertop fabricator and did this kind of work professionally so I do know a thing or two about it.

If you can get at the edge that is lifting by removing the sink, you may be able to shoot some adhesive in there with a needle. I have done this type of repair and then put a heavy weight on it and it held

I don't know how good of an image you could get of the original, but yes, there is custom laminate printing.

www.tapeease.com/custom_laminate.htm

-ModernMe

Check with your local carpet and vinyl outlet to find a p-lam guy. In our area carpet and vinyl places also subcontract out p-lam countertop work.

Lacquer thinner will not do anything to the laminate color. It dissolves the contact cement. Keep it off your wood finishes though.

An old clothing iron is what I used, full blast. The towel protects the countertop from being scratched by the iron and keeps you from overheating. Single layer, not folded over, don't wet it. As long as you don't burn the towel you will be OK.

Thank you for all the help, its much appreciated. 

Lol, yes I too have lots of bills after fixing up this trailer!

I have not ordered anything from the company listed above, I just found it in searching for laminates.
As for pricing, the website says;

"Pricing starts at $16.00/sq ft for one sheet and down to $12.50/sq ft for 25+ sheets. Pricing is by e-mail quote only. There cannot be any printing done 1" in on all sides of the sheet. Sheets are sent in full size and the customer must cut them down to desired sizes. Sizes available are: 3'x8', 3'x10', 3'x 12', 4'x 8', 4'x 10' & 4'x 12'. We also need a scaled drawing showing the layout you would like. Some Trademark images have specific Pantone color references and may require permission to use."