part# 11-6192 head tool heavy duty style. it is in stock and is 15.95
part# 18-0002 front bearing it is in stock and is 12.60
part# 18-8777 rear bearing it is in stock and is 18.00

You can order these parts from MECOA remember to use anti size on the head where it screws into the block.
A brand new engine with the sport muffler is 109.99 from them

I'm sure you can order bearings cheaper else where. But you will need the tool to unscrew the cylinder head.