A frame maker* could braze-in a new drop out. I wouldn't worry excessively about hanger alignment, you can correct minor issues later by cold setting, bending, the dropout.

You will damage the paint but mask off the surrounding area, prime and paint. Enjoy the ride.

* A bicycle shop will know of or handle repairs of this sort. You can buy as little or as much service as you need. Brazing talent can also be found in repair shops so if you live near the marine industry or auto shops, there's a pretty good chance you can find someone with the talent to help you out. A lot of businesses love these little cash transactions.