Tire size and lift help?

[beau08]

I have just purchased a nearly all intact 1970 C20 Long bed. 400 cid, a/c, pb, ps and all works. I will be starting a renovation project in the near future, but getting my plan together presently. I ran across this image of a '72 Cheyenne that is about exactly how I would like my truck to eventually look like. My question is does anyone have an educated guess from the picture what tires size this is? (315R75 16?) and how high did they lift this truck? Thanks for any input.