I know a couple guys here have the marquez ones on their trucks. Like Rokcrln
not sure on the fessler ones. I do know classic industries has started selling some that look like the marquez ones.
http://www.classicindustries.com/tru...s/fb1072p.html
They are 239 (same price I've seen them advertised for other places) but they run 15-20% off sales fairly often (almost monthly) and if you need other parts and buy other parts that equal up to 499 total the shipping is free too....so it can be a good savings!