I see there is a 1976 CB750K for sale on Bring A Trailer, lovely bike, check it out.

I’m still working on my 1976 CB750 Honda and just saw this on the auction site, its real cheap right now but am sure it will jump up in price towards the end.  But a gorgeous example of superbike era and thought i’d share. its on:  https://bringatrailer.com/