I have a couple left on the shelf. When they are gone I'll have to decide if I make another batch. They are expensive and they sell pretty slowly so it ties up a bunch of my cash to build a batch and watch them sit on the shelf.
I also built some motor plates that bolt on to this front cover. I put extra bosses into the front cover for the motor plate so you can hang the engine from the plate while changing the cam in the pits.