I have been looking at this for a while now,, my design would be to come out on ea side of the exhaust then go up and above the exhaust to the rear of the bumper and have a ball type hitch,, then you keep your exhaust where it is,, the other way was to build everything behind the bumper and have a removeable door where the rease hitch would slide into, just my cent and 1/2 worth. jim