Bare Bones Budget 400 Build

Question - if you use a forged 383 crank with your rods/pistons, does that require everything to be re-balanced? I'd thought the cast 400 crank was lighter than the 383.
I myself would send it out just to get it really supper nice. This would be my only big expenditure on a build like this. If I had money, time, tools and skills to do a ton of at home work like (possible resizing), rebalancing and polishing the rods etc..... I’d do that. But it is out of the scope of this build I think and certainly my wallet at this point in time.