I have lots of parts from a Kawasaki 15F. You'll get a better deal if you make me an offer via PM so I don't have to pay eBay fees.

Case: $699 OBO
https://www.ebay.com/itm/273057973799?ssPageName=STRK:MESELX:IT&_trksid=p39 84.m1558.l2649

Set of (4) Pistons and Rods: $399 OBO
https://www.ebay.com/itm/273058024235?ssPageName=STRK:MESELX:IT&_trksid=p39 84.m1558.l2649

I also have several core heads and lots of other motor parts.