u guys say its a bitch to work with PFFFFT! your not very good welders then, at my last work where we built fuel tankers, and we had some of the best welders ive seen, if your good a tig welding then it should be easy,also its easy to find ally mandrell bends, usually i used to buy them in donuts and cut them down to whatever bend u wanted,u can get them in any size.
If any1 wants any info on where to buy this stuff in Melbourne i can list a few places