Help identifying a few sb engine components

Unless its super cheap,it might be cheaper to get complete engine so you get all the roller cam parts and other stuff. I believe the cranks are the same but balance might be different. I can get number off magnum crank tomorrow when i open up. $400-$500 for complete good runner makes bare block, crank and rods cores in my mind...$100, maybe $150 if you know caps are marked, bore and crank stock.