I'm currently looking at an Os Gisken clutch (Aftermarket) which handles up to 650nm (480 ft lb) of torque. I am running roughly 500nm (368 ft lb) of torque as it stands.
I currently do all labor in my home garage and vlog as much as I can to document and help others with similar tasks. I'm more than likely going to give this a shot myself within the next 2 -3 months.