I replaced the door panels in my 1974 Nova with PUI Interior door panels (I know... you are not a fan of these).
Anyway, the full write-up on the door panel replacement is shown in the link below.
Part 1 I just installed new driver's and passenger's side interior door panels on my 74 Nova Custom. PUI Interiors Door Panel Set – Part #73XD10 (Purchased from Jegs) My original driver’s side door panel was cracked in several places and the upper door trim was held in place with rivets... and...
www.stevesnovasite.com
I also installed a 2005 Dodge Neon center console into my Nova to give it an updated look (plus I wanted cup holders!).
Some new interior carpet (both front and rear) along with some aftermarket front bucket seats were also installed.