Im going to say $500 in that condition. The Westcoast is the only thing that really sets it off, the rest looks pretty worn out, or just really dirty. You may be better parting it out, as those westcoasts can bring some cash, but again, not sure on the condition on that one, and not sure what the rest of the bike would be worth. Otherwise, slap a stock swingarm on it, and sell the westcoast seperatly, then you may come ahead a couple hundred bucks. Good luck!
THE 80's RAGE! Currently owns:
81, 85 Yamaha Tri Moto 125
83 Yamaha Tri Moto 200 x2
82,83 Yamaha Tri Moto 175 project
85 Yamaha Tri Z 250
84 Kawasaki Tecate 250
84 Honda ATC 70
85 Honda ATC 350X
84 Honda ATC 250R
(2) 84 Honda ATC 200x
82, 83 Honda ATC 185s
81 ATC 200
Lots of other parts and bikes