You're going to REALLY want to restore this to make it worthwhile considering the damage done to it. First step would be to have the paint media blasted off but not before you use the frame to have a matching paint mixed up for later. The idea of fully stripping it first is due to all the silver-brazing you'll need to do to restore the frame properley. It's not worth trying to touch up THAT many spots. The various decals will also be an issue. Photograph them from lots of angles including flat on as possible so you can replicate them using a graphics program and have a sign shop reproduce them.

Source the brazeons you need from one of the frame parts suppliers. The derrailleur side dropout will be the tough one But with luck someone has the same item that you're after. With all the parts in your hand it's time to silver-braze the bits on in the proper positions. For the dropout you'll need to melt the bonding of the damaged dropout and yank it free. Following cleanup you'll need to braze the new dropout back into place. Obviously a frame jig or suitable home made replacement will be required so that it goes in nicely aligned to where it is supposed to be. After it's all done get the frame painted.

Of course all this is going to cost far, far more than the frame is worth. But I gather that within some sort of reason this isn't an issue for this project.