I have two 350's, one with a cracked case/ sheared bar bolt. A guy on CL has two 41's for 90.bucks. (A runner and a parts saw.) Are they they the same case as the 350 ? Any chance of frankensawing the 350 PH into the 41 part saw? Also, I assume bars would swap out? If not the cases, what about other parts? Thanks, OB