Here is a quote I received from TrickTools.
the Model 3 with a degree ring (standard) is $295. No dies
included. Typically we see 1.5" or 1.75" material used in roll bars, so
a die set will cost $250-$275 depending on the size. Freight will run
about $60 or so for a bender and die set to you
I dont think it would be any problem making a stand, just a piece of square tubing with two flanges bolted to the ground.