Most of the non-Imperial ships are a warm off-white. To simulate the layers for weathering, use a black primer under Krylon Platinum, then if you want to get correct, match up a few Floquil colors or an acrylic equivalent to be about a 10% warm grey. Most of the panel work was accented in highlights, not in darks, so that's an area to play with as well.
If you want a screen appearance look, then use that same warm grey, but lightly dust it with a coat of a radome white (or reefer white if you use the Floquil stuff) or such. Be sure that in your weathering your panels that you simply weather with predominantly cooler greys, and you should off-set the temperature enough to shift it to looking like they did on screen.
Stripe colors are up to you to choose of course... a slightly desaturated warmer red works well for most, but for some it's too bright if you don't tone the red down quite a bit... so it's a pickle. I like Caboose Red. Almost all of the streaks and fun stuff are dab and wipe, and it's a process you can really get carried away with, and uh.... you know, if you find yourself making little 'whoosh' noises when you do it, nothing wrong with that. Perfectly normal. Ahem.
Have a blast with the fighter.