Source for aftermarket rr subframe '88 GSXR1100?

Friend of the boss dropped off at our welding shop. Most of bike appears
good but rear subframe (for seat, taillight, fender) is pretzelled. Even
with a good bike to jig off of repair will involve about $20 worth of 1"
Aluminum tubing and $1000 labour. Anyone know of a source (aftermarket)
other than wreckers?