Hey McHenry, remember that great line The Boss sings in Rosalita: "Someday we'll look back on this and it will all seem funny."
You are living the Great Australian Dream. But yes, I've been involved with my share of renos, and I had the in laws living with me for a few months last year when they were doing a build. You wouldn't meet two sweeter old people, but after the 48th morning when there was no water in the kettle and they were sitting sipping their tea smiling at me, I could have happily chopped em up and cemented them in their own foundations.
Good luck.


