I picked up a 1980 Schwinn Voyager 11.8 frame today -- nothing particularly special but it was cheap, it was my size and it had fancy head tube lugs so I decided to get it. I always forget the things I need to look for before buying a frame, and this one should have been pretty obvious. The fork is bent, but worse than that so are the top tube and down tube.

If you have a good eye for these things maybe you can spot it in this pic from the seller's ad:



I missed it and even from this picture I didn't see that the fork was bent:



I noticed it as I was putting the frame in my car but I paid so little for the frame that I didn't bother to go back. Here are a couple of pics that show the damage:







So my questions... Can anything be done to repair this short of replacing these tubes? If not, is it safe to ride this as a beater or would that be broken teeth waiting to happen?