There used to be a book 'How to restore your Chevrolet pickup" by I forget whom, someone here will know and once you have the correct title and author it will be a simple thing to find it cheaply .
Shop books needn't be pretty and pristine, when you find them dirty and dog eared that means someone used them so offer less than the new price and USE IT .
No matter how old or rare I rarely pay over $5 for any shop manual or book, there's just not much use for them after the initial buyer .
Chevrolet used to have a phone number you could call and give them the year model of your truck and they'd mail you, FREE OF CHARGE, a big pile of copied , detailed notes on all this stuff you're after .
Dupont and others all have paint chip charts that show the correct original colors .
Post up some pix of your project, we love 'em clean or dirty, the '49 3100 in my avatar was working that day, in the Panamint Valley, California far from home, these are TOOLS so don't be afraid to use it .
As one who's been working with and on these AD's since the 1960's my suggestion is to make it run then sort out the brakes, electrical , cooling system and all that stuff, this will take you some time and being able to drive it as you up fix it will ensure you don't loose interest like most do after they take it all apart .
Many here have restored and many others simply use and enjoy so the collective knowledge is amazing, no question no matter how mundane, is stupid .
Oh, yeah : WELCOME NEWBIE !