If you want to sell it, I'll give you $100 and I can pick it up any time. I'm local. Might sound like a lowball offer. I wish I had more to offer. I just don't. But I would restore it and ride it, not just flip it for profit.
If you want to fix it up, I might be able to help out with that too. But I'm not going to spend a lot of time helping you fix it, just so you can sell it for $700 (unless you split the money with me).
I have plenty of garage space to work on it. I have a truck to transport it. I have a welder and a powdercoater, so it could be cleaned up pretty cheaply.
There's a guy running around - he's a member here and he always has moped stuff on Louisville Craigslist - that had a complete E50 for sale last week. He might still have it. I think he wanted like $100 for it.
Rewiring the whole bike is easy.
I'm sure if you looked around you could find replacement side cover things.
It would be a hell of a bike with a little elbow grease.
But if you want to sell it, my offer stands. And if nobody else wants it whole, don't part it out until you give me a chance to scrape a few more dollars together to offer.
IMO, any Magnum that's not folded in half is too nice to part out. At some point - probably soon - there won't be any left if people keep parting them out.