Pretty sure older Ford and now Ford/New Holland are the perfect fit. If you have any older FNH dealer around that sell both farm and construction eq. check their lot, may find something laying around out back. Used equipment dealers are a good source too, here most have a hodge podge row of misc. items they have picked up. Tractor salvage yards too. I saw 4-5 laying at one last Fall on our Black Friday run, never know what those guys will pick up at auctions or get brought into them for trading stock. I always head for the "rust row", never know what you'll find.