As others pointed out, I'm pretty sure you have an '81 1000, very nice bike all around. The suicide levers were not standard on that model but I could see the OP having them put on.

If everything is mechanically sound then just clean it up and ride it like you stole it, because for $160 you did (at least it would be in the SoCal market).

The only thing I would think of doing to upgrade is to get some aero brake levers, bar end shifters (just my personal preference), and bump up to a 7sp freewheel in the back.