HOOD: I would have an repair shop take a look at it. Depending on the the amount of damage they should be able to heat it up and mold it back into position. But before you decide on one place make sure you get a few quotes so you dont get scammed.

INTERIOR: The best way to paint your interior is to first take off the pieces that you want to paint, sand the parts with a fine grit sand paper (600 grit) and make sure you sand every area to ensure that you removed all of the surface, prime the parts with 2-3 coats of primer, after the primer has completely dried (4-6 hours) sand the primer lightly with 1200 grit (you dont need to sand every area like the initial sanding but just to smooth out any bumps and orange peel the primer might have left), and last you can paint the parts and I would recommend a plasti-coat paint because it flexes and I've had good experience with it.

Just remember that preparing the surface so the primer sticks is more important than painting.

Good luck!