Craigslist BMW Fishing Trip

Decided to go "fishing" on Craigslist again looking for BMW parts bikes. Looks like I hooked another fish. Person over in Darby MT. contacted me and has a 1971 R75/5 for a reasonable price. Missing the speedometer/tachometer, front fender and carbs. The rest of the bike is there. They started a restoration , purchased some new parts and then lost interest in the project. It has been sitting in their garage for a few years. I committed to purchase it sight unseen. Definitely worth the asking price as the large 6.2 gallon tank is worth a couple hundred bucks alone. I don't know what new parts they have but am curious to see what I bought. We will run over tomorrow afternoon to pick it up if it all works out. I visited with the owner tonight and he said there is 4 boxes of parts with the bike. Ends up he inherited the bike when he purchased a storage unit years ago. He said there are quite a few new parts but he knows nothing about motorcycles and all he knows is that the seat and tank look real nice and there are lots of boxes. The bike has always been indoors and now I'm wondering more about what it is I've purchased. Kind of like an early Christmas. Maybe it's an older rare earles fork model, or maybe it's a rare old racing bike, more than likely it's an old beat up /5 junker. But it is always fun to dream...... you just never know........You know I just got to thinking.........I sold my first BMW, which was a worn out 1971 R75/5, to a guy in Missoula 12 years ago. What are the chances that I've purchased my old bike back? Karma could be coming back to bite me!