op i don't wanna hijack your build thread with my door panels lol. i ave a certain way of prepping, painting and maintaining painted interior pieces.
if one is going to go through the trouble of refurbishing interior vinyl/plastic then i would assume this isn't their work truck lol. so as for the painted pieces standing up to gravel, logs of wood, hammers and screwdrivers...naaaahhh it wont. can you spray interior cleaners on it and keep it clean...yep!
typically your door panels dont get much abuse other than maybe your shoe scraping along the bottom when you get out or in and from grabbing the pulls and handles to open.
so yea...you have to pay attention to the painted surfaces making sure you're not grinding hard things against them. but i never do that to any vehicle i'm trying to restore the interior of lol.
heres my jeep that i recently finished the interior of. i used duplicolor vinyl/fabric on all vinyl and plastic.
[/IMG]http://i1171.photobucket.com/albums/r559/tkooliver2/DSCF8718_zpsc1ec1061.jpg[/IMG]
and here it is today....several months later and several thousand miles later. just drove it with the wife and kids all the way to florida for a couple weeks and back. still looks exactly the same
so for those that think painting interior pieces won't hold up or last they are wrong. you just have to treat painted surfaces differently. that's all.