I'm in the process of installing the Eastside Motorsport kit, which I think is similar to the American Powertrain setup. It hasn't been without issue, the spacing for the throwout bearing didn't work with the parts it came with, but other than that, it seems like a good kit. I haven't finished the install yet.
MOPAR HYDRAULIC KIT – TREMEC 5 AND 6-SPEED, 18-SPLINE A833 - EastSide Motorsports