Engine Rebuilding Lessons?

My suggestion would be to search for a good book on rebuilding, one specific to your engine. When it comes to tool purchases a 6" vernier caliper is the first thing I would have in my hand, along with paper and pencil during tear down. I prefer the none digital ones. There is so much valuable information that can be gathered while disassembling which gets lost because of rushing disassembly. Critical to mark with punch or engraving on rods, caps and mains of location. When it comes time for more precise measuring the dial indicators and micrometers can be purchased if desired. Don't rush, be orginized and have a plan.