Hi, ive got a 2011 Jayco Expanda 14.44 (Tourer) and want to replace the standard white round rear bar with a square tube galvanised like they are on some models of the Expanda. All i want to do is get a spare wheel mount carrier so i can relocate the wheel onto the rear bar, allowing me to mount my toolbox at the front. Does Jayco sell this or is there anyone that can make these custom and they just bolt into the existing mounting points? Im located in Adelaide.