i measured the crank tonight with a micrometer, they measured 54.985-54.965mm i think it was. We had an undamaged crank there too and compaired them both and barts was actually measuring more consitant across all than the good one. It didnt spin any of the bearings.
There is very slight scoring on the journals, you can see them on the surface but are very hard to feel under your fingernail, Not perfect but far from fucked. there was unbelievably little damage on them given the bearings were knackered