you list don't seem to have a lot to it but I can imagine working with engines and digging up or filling in ground space will be time consuming :) I once and only once tried to help a friend change out a motor in his car I was too week :( but I tried :D I wish you much luck on getting half of this done by the end of 2018 sir :)
RE: My "Homesteading bucket list" for the next year.