I have done quite a bit with my interior.
1.Hurculined the tub (No carpet in it when I bought it)
2.All three new bestop seats(The old ones in front were shot and the rear was misssing)
3.Replaced the head unit with one I had at the house with a detachable face.
4.Tuffy undersear rear storage box. (Finally a place to securely store tools/valuables)
5.6X9 speaker boxes with marine grade speakers in the back (not the best setup, but most cost effective at the time)
6.tinted the windows of the the hard doors and hardtop windows
I want upgrade the interior lighting, fix the tear in the top of the dash, add a center consol, and maybe some more secure storage on the rear fendors in the back.