I had one of those recently. I am pretty sure it was an '86. It lacked the SIDI decal though.

I purchased it for $150.00 last fall, did some clean-up, and sold it for what I considered a "buddy" price of $130.00 + some parts to local BF member who told me he wanted a rider. A few weeks later I saw it on CL with a picture I had taken of it with an asking price of $250.00. Apparently, it either sold, or the BF member decided to keep it.

Bottom line - I'm pretty sure that $250.00 for that model bike in a moderate bike market at a bad time of the year was not too much to ask. I imagine the right buyer would be willing to pay more - just not sure how much more.