Rare '67 ?

['67 Rookie]

Hi, I'm a new Chevy owner and could use some guidance. We have a '67 C10 4WD short bed, 6 cyl, 3 on the tree. The guy helping me with body work says it's a rare truck because it has leaf springs in the rear instead of the coil springs. Apparently he hasn't seen this combination of truck before. He says its worth a lot of money (not my reason for owning it by the way) if it's done right. I've been told the gearing was special ordered with a final ratio close to or over 5.0! I also thought the 4WD made it a K10, but the id plate in the glovebox calls it a C10. Needless to say as a new Chevy owner and new to restoration I could use some suggestions on how to proceed. So far the exterior is shaping up nicely, interior as well. I would not call it restoration grade, but it looks great. Almost ready for paint. Engine compartment, drivetrain, undercarriage, have had no work done (except POR on frame). Some questions I would ask a seasoned Chevy guy would be: Should I spend a lot of money to fully restore this truck, or make it look nice and drive it with pride? Should I Convert to V8 with newer tranny? Should I paint it a cool color or paint it the original pale yellow? Is this combination really that rare, and is it really worth a lot of money? I don't want to think of it as an investment, but don't want to ruin a truck that is or could be special. I'll take any and all feedback. Thanks, Rick