Honda-SOHC

Hi, has anyone got a cylinder head complete with valves and a camshaft sprocket to sell me?
My 1977 k3 was running pretty good but had a weeping head gasket. Did a compression test and had three low cylinders which I tracked down to three leaking exhaust valves. On stripping the head I had six bent valves and a broken valve guide. The teeth on the camshaft pulley are worn to sharp points so it's anyone's guess what's happened in the past.
Thank Ian