I’m gathering that JL43062 hasn’t had much experience stripping and rebuilding engines and that the crank swap operation is outside his comfort zone. That’s why I was trying to minimise the challenging steps.
If you’re new to rebuilding then watching a few videos of others doing the same procedures can improve confidence. You can also grab a junk motor from recycling, strip it and reassemble it for practice. The second one is so much easier than the first and so on.
Swapping bits around isn’t a problem provided that they’re the same in the critical dimensions. As an example: I’ve rebuilt a few car engines using mix and match for cranks, blocks, corods, pistons, heads etc. As long as clearances and other dimensions are within tolerances then it works just fine.
