yes the first model here was the 77 250 B
minimum $1000, you dont see many around in Australia
are you interested in buying it? it could sell for less, it could sell for a lot more. it just depends on whos selling it and whos buying it.
best way to do it is put in on ebay with a highish reserve to get some sort if idea what people will pay for it. if the reserve isnt met he doesnt have to sell it. if the reserve is met then all is well.
most important thing to do with ebay listing is good photos and description. you cant expect to sell good bike with one small little photo.