Who here has used a Powertrain Technology hydraulic throwout bearing?

Powertrain Technology put me on to a guy here in Australia that was supposedly selling their products but he no longer has them, and to be honest i feel like they (Powertrain) cant be bothered helping, so i saw on another thread that the Ram Clutches Corvette one (part # 78135) will fit a A833.
Anyone tried this setup?