A H55 Short Throw... Now that would be very cool!!
Not sure if my PM went through when I tried to send it (router went belly-up at about the same time I clicked the send button), but I have an H55 sitting in my shop that'll still be a while before I can install it on my truck. I'd be happy to provide the shifter base from it to help in the design of a short throw base.
I assume you'd need both the shifter base and the stick itself? Hopefully you wouldn't need the entire tranny, because that I can't ship