I just did my transom. I am putting off doing a cap-off restore for another year.(I
need to go fishing next year)
It will come off. Lots of screws under rub rail and deck is "glued" to stringers. If your 82 is like my 84 most of the glue is broken free already.
There are threads on this site with cap-off restorations. If you did a transom then there is no reason to fear doing a cap off. You just need the TIME and Space.
Are you going to pour the stringers? I think I am going that route since the transom worked out great. Then fix any deck spots and paint the whole boat.
Is the 82 a self bailing deck? Not sure when they raised it. The 84 is self-bailing.
I look forward to pix of your project.