You could weld it with an oxy.
If you get a good fit with the bits you wouldnt even need to use filler rod.
It possibly wouldnt be as strong but if it hangs out a long way bracing it should see it go the distance.
Have a look in here
http://www.ozisu.com/forum/viewtopic.php?t=225&postdays=0&postorder=asc&highlight=cad&start=0
Bugle made a picture, its on the first page. Have a look around in the forum too theres other stuff all over the joint.
You could also try on the
http://www.ozgemini.com/ forum, theres some guys doing crazy stuff on there.
Even if you just tack it together and get someone else to weld it up. Heck you could arc weld what you can see and oxy the rest.
Cheers, Bob.
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Current project, 1979 KB Isuzu Ute.
Daily driver, '86 Rodeo Spacecab.
Chasing parts for Isuzu Impulse.