Value of KZ1000J

Hello all. Have recently had some medical issues that are going to limit my riding, perhaps as in no more. Enjoy your rides when you can boys as my problem hit me out of the blue. Anyway, I will probably be selling my 1982 KZ1000J, but I am having a tough time figuring out its value. You just do not see many advertised for sale (partly because I don't think many were sold back in the day as mine was not titled until 1985). It's in really good shape (rider quality) with less than 16K miles. The only things not stock are the Ohlins shocks, mirrors, seat cover, and engines case which I panted black. Paint is pretty nice, but not original (except perhaps for the side covers). Runs like a champ. Also have all the neat ancillary stuff like owners manual, tool kit, service manuals, dealer brochure, etc. Anyway, any help/guidance is appreciated. Thank you.