TL;DR How might a non-mechanic go about rebuilding a school bus engine to ensure it works and will run properly?
I am trying to learn as much as I can before I make "the plunge." I am going to graduate college at the end of this semester and need to find a place to live that isn't my dorm nor my parents' house. After much research I've decided I want to purchase an old school bus and convert it into a motor home. I know this isn't an RV forum but that's not why I'm here. I was just hoping some more experienced mechanics could point me in the right direction when it comes to making the engine work properly and keeping it in ship shape. I have no experience working on cars and will probably never make much of a hobby out of it, but I think it will be beneficial to know how to rebuild a diesel engine by hand. So, the question is, where should I go to learn how to rebuild a a school bus engine without having to go to mechanic's school? Are there any good resources for this? I looked for step by step guides but couldn't find any which to me was rather odd as I am a Software Engineer and just about everything I do professionally others have already made detailed guides for online.
Thank you all for any help!