If you want to see what i've done with my '83 and have LOTS of time to waste, you can look through my build thread. I have a few posts in there about when I redid my taillights somewhere.
https://www.stangnet.com/mustang-forums/threads/83-t-top-coupe-drivers-door.892774/
Good luck with your build, and you might consider starting a progress thread as you go through your build. You'll get all sorts to help you out. Mechanics that know everything about everything about our cars will help. I paint cars myself, that's my area to help out.
Wheels are a big choice, lots of money involved there.
Holler if you need help.