New Zealand tree farmer Marty T has been posting detailed "back from the dead" tractor / bulldozer / grader / etc. restoration project videos for some time.

* https://www.youtube.com/watch?v=eVvO1tKKjRQ

* https://www.youtube.com/playlist?list=PLrCvcRxFfyzt3vJmctRaN...

etc. Also hydropower from old washing machine parts and other associated stuff you do on the land videos.