Hi Eman 760,
Just saw your post. I'd offer $125 if they don't have big dog they can sic on you. I'd measure the fork tube to see if it will fit a bike frame. Measure the bike before you go back. Gas tank should fit a bike. Motor is set up to put in a bike frame. You will need a hub mount for the sprocket but they are reasonably priced.
Hope it's still there but it looks like it's in a scrap yard and they don't have much invested in it and they hope you want it. I'd take off what I needed and I'd sell the remains on Craigslist.
Steve.