Need direction with tires on my 1 ton

[purzell]

So for my '66 GMC long stepside one ton I have picked up a set of used 16" steel Chevy wheels from the early '90's to replace the 17.5" split rims that are on it. They actually look really similar to the split rims. I want to buy some tires (hopefully I can find four used ones that will work) and I know I need a load range D or E tire for how big my truck is.

My question is: is there a science to tire selection? I prefer the look of a smoother tire for this truck vs. a mud or off-road tire. I have BFG on my Jeep but I'm going for more of a street look with this truck. I see a lot of 16" tires for sale that I think would be too small. Anyone have a suggestion for a street looking tire but that will have the correct load range rating?

And those of you around Sacramento, any used tire shops that you like?

Thanks.