I too am surprised that one sold as "cheap" as it did. Had it on my watch list and thought about bidding, but wisely decided that I really don't need another project that I'll not likely get to in this lifetime.
Congratulations on what seems likely to have been a good score. Perhaps you'll get lucky and find a total wreck with a good end frame available someday. Meanwhile, I'm sure you can jury rig something that will make it functional for now.