question regarding engine building

[68firebird]

I've got a 350 4 bolt sitting in my aunts garage collecting surface rust. when I originally got it I had it magnafluxed and they said it was good. I was thinking of slowly building on the side. My question is I have the block and the crank, but I don't have the caps. Is it as easy as buying new caps from summit or somewhere else then bring the block, crank, and new caps to a machine shop and let them do what they do? thanks for any help.