WOW! I hope you took a lot of pictures and labeled everything. Was it rusted solid? Were you planning to repaint it? There are automotive paint shops in every town - I bet they could use up their extra paint on it when you get it painted. You might have it back in a couple days by having it painted locally.
Most of those old machines will clean up just fine by a gentle cleaning. Clean off lint with a fine brush. There is a varnish on them that protects them from rusting - I think it is a good idea to just leave that varnish on. A good oiling inside and down under is what they really need to get them turning very freely and sounding good. Chrome cleaner will clean up the chrome parts - doesn't do the decals any good so keep it off them. Clean off the machine with a bit of sewing machine oil and you should be good to go.
Muv has some excellent videos on cleaning a vintage sewing machine.
http://www.quiltingboard.com/vintage...v-t167789.html I find her videos very informative and relaxing to watch
Finally, Glen knows how to get those back together and he might coach you to get it working again if he has time.