For the money and time spent to acquire this particular skill set, I would rather pay someone like you that already has those things and would do it a lot quicker than myself.. I have the tools and knowledge and passed it on to my oldest son who is a lot younger than I am. I no longer work on cars for a living and am glad I don't--too many headaches!! But a professional machine shop can build you an engine cheaper than you can do it at home -- as for all the machine work that has to be farmed out and not having the equipment on hand. And to get a better deal, you can buy any number of crate engines cheaper than a machine shop can build it. JMHO You just can't say you did it at home. Who cares as long as it works dependably?