so i stripped the 203 i got for my doubler over a year ago. and the main input/output ball bearings made there way under my bench grinder/drill press and ended up getting full of metal shavigns. so i found a doner 203 for the bearings. well as i drilled and started to tap my original gear box i started looking at the mess inside of the box and thinking of just drilling and taping my donor gear box and leaving the idler gears in so i dont have to mess with the 60 (or so it seems) needle bearings and washers/spacer. im thinking i can just stuff a rag in it to block all the shavings and the one hole i gotta drill where the idlers gears are just not drill completely through? what you guys think?