Never been screwed buying remote bikes. Of course, I've never bought from the places where you get screwed (Facebook, Craigslist, etc.) All have been eBay or from forum people.
It's very common to use parts from other bikes build another. Most used parts for sale today are from breakers (people who part out bikes with no titles). I had a matching set of cases and frame and lots of missing/bad parts. I used parts from a non-titled bike while building that one. Nothing illegal about it. When done, the "parts bike" cases were simply left over. Since it was a 750, the frame was simply a left over part.
I mixed up post #4 which has a price - I have no idea what your seller is asking. That said, with the little info you provided and no pictures:
Drum front brake: $2800 max, all in
Disc front brake: $3200 max, all in
Disk front brake and Combat: $3500 max, all in
Most people who ask me to build a bike want a 750 Combat or an 850 - probably for nostalgia.
BTW, Norton had no model years. It is common for the year on the title to be later than the actual year built - when the dealer got the title, they specified the year.
