wa8dli

Help! I bought an MRC-mariner boat at a flea market. Its a jet drive system. It was incomplete. The drive shaft and motor and bearing are there but the helix impeller and screw are not there. I called MRC but they say that they no longer carry parts for this boat as its over twenty years old. Without these pieces the jet drive is useless. Anyone have any peices for this boat in the junk box? Oh I also need a fuel tank also but figured I can get something that would work at the local hobby shop. It has what appears to be a K&B .60 engine not sure how to tell the size for sure. Sure do appreciate the help.
Thanks Greg