Donny, not sure why you'd want to copy a particular look when you don't already have a pretty clear idea what it is.
Disregard advice to slavishly follow a particular genre. You'll just end up with a truck that looks like the gazillion others owned by people who do that. Lead, don't follow. Original thinking is king. There's nothing wrong with putting stuff from different periods together. You can have paint that takes its cues from one era and, say, wheels and tires from another, and interior treatment from another.
Start with a look you know you like from seeing it on someone else's ride, then put your own twist on it. That can be a small thing or a radical departure. Take the time to doodle some ideas out.
If you like wide whites, WTF, have them. If you like satin green paint or red and yellow stripes, then cool. Whatever. Put the stamp of YOUR personality on your ride. Go your own way, not someone else's.
Konformity Kills.
