If you can get 100% Biker mag (mostly available in the UK) where you live you want issue no. 67. There's an article in there on building your own bender that works for up to 1 1/4" tube.
I was really impressed with it, and I wrote the article.
If you can't get hold of the mag then in a couple of weeks we'll have plan sets for sale.
Neatest thing about this bender is that you don't have to buy the formers for it, or a bottle jack. It's all totally builable with a jigsaw,welder and a drill press.