I'm by no means a pro engine builder but I'm thinking if your rotational clearance off the caps exceeds crank fore and aft motion, you're probably good.
Evidently you are not comfortable with the cap mismatches and I probably wouldn't be either.
Well, try to move one. On the #4 cap, it appears to hang over the block. I might try to reposition this one just to satisfy myself. Don't forget the assembly lube.