Restoring any old truck can be a long and arduous journey. But it'seven tougher for 60 and 61 chevies and GMC's. You'll find out. But your truck will be more unique in the end. If you have the original hood, keep it. Look for rust under the roof over the windshield. That must be reapired properly. And then you'll have the usual arears to look for.....the dogleg pillar posts running down into the vent area and lower fenders. I'd also recommend getting that truck up and running first. If you want to modify, at least you'll be enjoying the truck as you work on it. If you go for a frame off resto, you may never enjoy the vehicle before your wife forces you to sell that pile of junk that used to be your truck that now sits behind the garage.
PS the windshields in clear are brutal-about $1100.00. the green tint or shaded ones are about $350 plus &110 shipping from places like Brothers and others.
1961 K10 4x4 longbed. 6 year resto, never driven it, just came back from the paint booth. Painted green, the color of money. But man does it look awesome. showroom floor stock.