I'm in the process of restoring a this bike. My boyfriend decided to "help" put the bearings in with his shop press. The result is illustrated below... See where that lip is supposed to be in the first image, and how it's not on there anymore in the second. He managed to push the bearing right though the case. My question is can this sort of damage be fixed by an engine builder? Like a local shop or even a specialist shop like the kind that do welding on heads and cylinders? If I can't get it repaired, then do I have to buy cases as a matched pair? On some bikes like the Suzuki RG500 I'm aware the cases are machined together and must be kept as a set. Other than that I'm just so grumpy about it at the moment that I had to tell someone.. arrrrgggh!