you can get the crank linished so that the surfaces are nice and smooth. while the machine shop is doing that, they can measure the journals to check they are in spec. If so then you can get a set of new bearings in std size and fit them.
Note- my GZE spun a bearing and i had to get the crank machined, the bolck tunnel bored with 10thou oversize bearings. cos a bit, but at least i know its all tip top.
ypu may want to do this just to be sure.
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