I know thirdeye has fabricated stainless steel hangers for jerky, hopefully he will chime in.
But I see absolutely no reason you could not fab some hangers or use a Smoke EZ setup.
I have been using Bayou Classic Chicken Wing and Leg racks in the Big Drum Smoker clones and they are no different than hanging from hooks on a rod.
I figure if I ever had the desire to hang meats in my 55 gallon drums, I would be able to successfully use the Weber cast iron grate insert holder to suspend meats on hooks.
This way I would not have to alter my drum in any way.
Paul Kirk told me one of his first smokers was a drum style in which he hung meats on hooks.
Of course the PBC purists will point out that its a 30 gallon drum in which case I will sacrifice an 18" cook grate and cut the center rods out.