If you want to drill & tap the end of the crankshaft for an installer, I have a kit built up with all the necessary guide bushings, drill bits, and taps to do it right. I get a small deposit upfront and return most of it when the tooling comes back in good shape. The old-style 216 balancer with the hand crank lugs needs to have a little machining done on it to use a center bolt effectively.
Jerry