How sad is that ...
I once owned the 300/2 Nikkor and still regret I sold it off. The 1200-1700 should be f/5.6-8, not f/11. Do you have in mind one of the various versions of the 1200/11 (I own the 1200/11 ED-IF)? Or perhaps 360-1200/11 (which, incidentally, I also own).