If your panels & interior are in good shape, just not the desirable color, dye them! My entire interior was light brown. I used SEM for my door panels, dash pad, and even the carpet! The place I buy SEM from is an hour away, and I needed some ASAP, Duplicolor works just as well. If you do not want to remove everything (I only removed trim around headliner and pillars) buy some blue painters tape and make sure you have good crisp lines. I spent easily a few hours just on applying tape. Make sure they're clean, use some dawn and let them dry well. These trucks are fun, this is my first build also! This website has helped me greatly, stick around!
Here's my door panel. My little satchel on the door was my test, that's why its black in the first pic! LOL
Sorry for the blurry in the picture, don't know why its blurry.