Funny because I've been looking into doing a project similar to this soon also.

The house i just bought already has a shed but it was just put on the ground with nothing underneath it at all. Unfortunately this has caused it to lean slightly. Soooo I need to do some digging and get a jack. Fun times ahead. I can feel it. Fortunately I have a life and dismemberment policy through work

Dont put your shed on just ground guys