Bauer Junior Part Needed!

Hello, I hope someone might have one of these abandoned in a garage somewhere- I have an 1991 Bauer Junior, block number 58807 that it turns out has a cracked first stage cylinder. Does anyone know of an old bauer laying about that they might part out, or a source for parts for these old compressors? For clarification, it appears that there is a difference between the older Junior 1st stage casting and the later Junior II first stage casting- mine (the older) has four holes for studs mounted in the block and then has two studs on the top and two holes for bolts attached through the head. The newer castings appear to bolt all the way through the head and cylinder to the block. Any help would be greatly appreciated!

Thanks,

Jason
rchrds@charter.net