Forgive the clueless post - my workplace randomly block BF images, so I cannot see the bike. Is it a SuperSport circa 1987?
If it is, they are really nice bikes. I picked one up a couple of weeks ago for $50. I got lucky, but mine is not in as good shape as yours is reported to me (can't see the pics). It had some top tube surface rust that I got rid off and touched up. It also has a stuck stem. That's still stuck, but the bike was set up for my height so it's not a problem. PB blaster, a mallet etc all didn't help.
The rest of the bike was immaculate --- all original parts in unused condition. The chain was a little rusted but some WD40 and some oil took care of that. I love th Shimano 600 group. Very nice!
Anyway, if I guessed right I get extra points as I did it blind
Hope you enjoy the bike.
EDIT: I can see it now. It is a Super Sport - I was right. Yay!!
It is in much better cosmetic shape than the one I have. Good pick up!