get some spring benders from lowe's or home depot. looks like a set of "bell mouthed/flared" springs. slips over the tube, slips off after bending. probably can't buy just one, have to buy a set. cheap enough, around $10. look in plumbing dept., or, do you know any plumbers or gas/propane guys? they should have a set you might use......
You might beable to aneal the tube with a torch,let cool,tape off one end and pack with sand,then tape off the other end and try bending around some jigs,,I think I did a stuffing tube this way,way back when, and it worked out fine