if you are using aluminum - i believe TIG is the proper welding choice - no? MIG is still to hot for most aluminum.
It would be badass if you could do an aluminum degas bottle.
I'll try tonight.. my Photobucket has been down.. On my phone at the moment..
I'm having extreme troubles finding mandrel bent aluminum pipe.. I can rent a TIG so I'm all set.. Just need to get this bent tubing and weld it all up and put it together..
I found several outlets for aluminum bends when I googled it some time ago. I didn't properly make note of the business names, and I don't have time right now to do it again. If you continue to have trouble, I'll try to help later today!
KS