Geoff...... interesting idea, but I really am into cb750Ks! My son and I are only missing a K2, to complete our SOHC set. The K3 pictured above is his regular ride, and although we’ve worked both ends, the engine has never been out and the frame is original paint..... I was going to tear it down this winter, but if I can get that Seeley race bike, might just stir the two together. Because the K3 is already plated and insured, could be a pretty seamless upgrade!