There are multi trailer shops up here in the Detroiter area ( suburbs) that might have what you need I only recommned this because I see your UA 50 out of teledo. If you can get me an Idea of what you want need I might have the material at work ( im on vaction awaiting the end, trying to pickle my self ) I have some me tubing 7/8 id 1.12 or 1.20 od with I think 3/4 round bar might have 7/8 ill have to check. I gladdly help you out but shipping is gonna be kinda spendy maybe 15-18 lbs total weight How long does the hindges need to be 10" 14" 18" each?