Saw these on ebay http://www.ebay.com/itm/REAR-WHEEL-...ine&vxp=mtr&hash=item19ca77bd3b#ht_500wt_1193 Good Idea! Rather than the flat stock panels which cause tire clearance problems these have a flare to match the front fenders and the price is nice too.
He doesn't say what guage the metal thickness is. I ordered one like those for my '54. I was pretty disappointed with it, real flimsy. I wound up using it to replace the inner rear wheel panel.
Maybe EMS can fab these up in better quality as rear tire clearance is a big issue with 52-54 Fords,keeping fingers crossed.