When we replace the crankset of a repair we explain that as much as we try to anticipate the results the bike world in not a perfect place of info and meeting specs. We say that only with the actual fitting of the crankset will we know if the OE BB will be a suitable dimension. Of course we know how to estimate the OE BB length with the OE cranks on the bike, we know that the BB condition might motivate us to suggest a replacement (and we try to get a feel of this at assessment) and we know how to read Shimano, QBP and other published specs for crankset/BB claims. Still there are a number of the dozens of service jobs we do that don't work out like we might wish. Having that worst case discussion with the customer up front is always the best approach.

The OP give just one aspect that can be overlooked or not judged well up front. The ability for the frt der to readjust it's movement range to play nice with the new crankset's actual final position. Andy.