I am the same way...I like all kits of the very very late 50s through 70s body styles...2door,4door,wagons,campers,vans,and of coarse big trucks..LOL.. First thing you need to do is figure out a good kit to start with that fits what you would like to make from it something in the era of trucks you want to build one of and go from there. The Diamond REO...AMTs Western Star are good starting areas in my opinion...they have the older truck look. Internet photos will give you a good idea of what things should look like and then you can decide what you want to do with yours to make it your own. I have no photos of any but there easy to find just google them...GM Diesel engines. Best advise anyone ever gave me is to treat every part as if it were a model itself.