I haven't looked at this but if you can use chevy one ton hubs and the one ton brakes are the only problem, why not us 3/4 ton rotors and calipers. A lot of people in rockcrawling do this to cut down on the weight and reduce clearance problems with the one ton calipers and 15 inch rims. It would require a custom brake bracket, but if this is the only thing holding the swap up, it seems to be do able.