The trouble is...I already have a few plants in where I would wanna do the garden. So...either I'd have to start over, or I'd have to dig 'em up and hope they survived the transplant. And I'd have to get the supplies - the soil mixture and all. So it's probably something to look forward to. But...I'd like to do it eventually, for sure!
Then perhaps it's best to wait until after this growing season and plan for the next. The book would recommend you only need one 4x4 grid for a single person. That would give you at least 16 different plants. And, according to the book (I've yet to try it), the yield is higher.