I've got a stainless top mount for a T3. yeah, its one of the Ebay parts...reddogmotorsports, to be exact, but I did weld in the flange to flange reenforcements.

I would have used it on my own car, but its an ABS car, and with this manifold (like many others) the turbine housing hit the brake master, due to the longer booster.

Anyway, I'll take $100 for it.