I would try calling or send a PM to (in no particular order):
Gary Barber @ Outlaw Aircraft Engines or
Speed Wheelie (Tom Jeffords) @ Jeffords Airboats or
Justin Ficken, JT540 on this board.
Their contact information is all over the board, should be an easy search.
If one of them can't help you, I would be willing to bet that they know who can.