.......Would a rebuild be cheaper than finding another motor?
I'm going to talk to a guy out on west Colonial later this week(Precision Cycle). He has a shop on the south side opposite the fair ground entrance and he's a talented mechanic. Sort of a jack of all trades type but I've seen some of his builds over the years. You name it, he's either built it or fixed it. Don Holubik, in his mid-60's, has a huge shop, been there for years and I've used him many times over the years. Might be on the pricey side to have it rebuilt but don't know what choice I have, too much invested already. I don't have all the tools anymore to do it myself.
If I could find a short block somewhere I would do all the change over necessary. I'd prefer an '85 or later since the '84 was a one time issue for gearing, ignition, etc., and '85-'87 were all the same. Even the starter for an '84 won't work on the later models, plus the ignition triggers for the '85 and up are in front same as the Valkyrie. The '84 is a completely different setup.

An interesting side note; the last time I was in Don's shop, he had to show me his current project. It was a handmade reverse trike using the front end of an old front wheel drive Chevy...forget the model. As I recall it was going to use the back half of the car so the driver would have a trunk. Seemed kinda silly to both of us but he claimed the guy that is having it built had more money than sense apparently. He wanted it done, Don could build it, and make a nice chunk of change in the process. Oh well.....to each their own!