How can I know the right price for a 1985 Honda Shadow?

Please supply me with links to retailers, or any "official price guide" or something like that...They're selling me a 1985 Honda Shadow at $2500, and I think that might be higher than what it's worth. The guy that posted the sale says it's a 1990, but after looking at the pictures long and hard and double checking through internet, I KNOW it's a 1985!How can I know the right price for a 1985 Honda Shadow?http://www.nadaguides.com/default.aspx?L鈥?/a>How can I know the right price for a 1985 Honda Shadow?One good way is to look at completed auctions on eBay. There鈥檚 one 鈥?5 VT1100 with 10k miles that went for $2425 and a few 鈥?5 VT700鈥檚 that went between $1000 and $1500. Hope that helps.How can I know the right price for a 1985 Honda Shadow?If you're that uncomfortable with buying this bike.....just walk away from the deal.