I have cast ally dies that I use in a converted conduit bender, 1 1/4" isn't a problem, 1 1/2" 16ga found a flaw in my casting and split the side out. I've since modified the pattern , but haven't had the time to have another go.
That's a reasonable price for a fair bit of kit I think. Our rotary draw bender cost 10 grand!!
Die and follower sets are around 500 a set. Probably paid for itself by now on saving cutting and welding tube joints!
Feen just followed your lead, £400 got me from pro-tools in florida a die-set,bender degree ring and shipping to california (have a cunning plan to get it home)