Mike, you may finish up happy or sad in the end, but I agree, that is a great engine for the price if it's in halfway decent condition, as claimed. It is very difficult to tell how easy it will be to fit, though. Plus if the starter or generator doesn't work, that can be a pain in the backside to sort out.

I guess what I'm saying is that if it turns out to give you a few problems, it may be more of a hobby than an engine swap. That doesn't make it either a bad engine, or a bad deal. If it fits in easily and the electrical items work and are compatible with your Toro, it may be a really magnificent deal. Personally I like the idea of a flat twin better than a V twin, for a mower. The access to the spark plugs and cylinder heads is magnificent, and the smooth running would be nice too.