Are you guys listening to yourselves? First just a gasket or two then the timing chain and gears. Next a cam then pull the heads and on and on.
If the drive train is currently out of the car and you plan on keeping the car for the forseeable future then bite the Bullitt and do an overhaul. That takes away any mystery and a "Stock" overhaul isn't that expensive. With the high nickel content of these blocks you usually wont have much if any ring ridge and if it wasn't hammered into the ground and dosen't require an overbore the pistons should be ok to reuse. New bearings, polished shaft,new cam and lifters, valve job with the usual gaskets/seals and your good to go for a loooooooooong time.
Be sure to have a qualified machine shop check the heads, cylinders, pistons/rods and crankshaft to be sure of the condition before reassembly. A new balancer would be good insurance also as the rubber ring deteriorates over the years and you definitely dont want that puppy coming unglued.
Whatever you decide - good luck with it.