For all I know, that might be my the very first bike I owned, a blue-green CB350 that I purchased for $700 in 1970. I always liked this K2 model the best with the classic flat sides to the tank, but without the dorky knee gripper panels of the previous K1s.
Why not see if you can get it running? If it runs well, stuff like fixing the tank and sourcing side covers and headlight buckets is not that difficult. OTOH, if the engine needs major work, I'd part it out - just selling the seat on ebay will recoup you investment.
- Mark