And just to add a little to those sources:
B.A.T. said they have some parts, but NO complete T9s for sale.
Taylor Race Engineering has several T9s on the shelf. But at between $3,500 and $5,000, they are far more than the application I will be using them for.
Quantum Mechanics' prices are actually more expensive than if if I were to directly import a rebuilt unit from the UK. Not sure why that is.
Burton and Raceline are good choices, although I think at that level I would opt for a BGH gearbox. Again, more substantial than my needs.
Anyone know of a good rebuilder of the T9 here in the States, or can any 'transmission' shop familiar with Fords do the work?
Best,
tom