I was preparing to mount my O360 that has been inactive for a few years but with 3HSMO when I noticed the valve springs heavily rusted. I tore the engine down and I think the cylinders will be ok, I ordered a hone and a set of rings, The oil relief spring was in two pieces, the cam was actually the only thing that had no corrosion. The crank has some pitting that I figured would be fine , none on any of the bearing surfaces except the #2 main bearing fillet. I just read in the Lycoming overhaul manual under corrosion that this is unacceptable. This is pretty depressing, for the first time in the build I am pretty much at a standstill. Is this a doomed crank?, Anyone have a good one for sale at a reasonable price?