I've got a disassembled entire engine from my 87, I have it almost all the way apart cases split to replace crank bearings which I have bnib, aswell as a full bnib Wiseco hi compression Top End, SBLT Billet Thrust washers, RM250 wristpin and bearing, with full cosmetic gasket and seal kit. Shoot offer. Has a race ported cylinder but I'd separate top and bottom ends.