[floatingatoll]

Okay, so, for #4 "no grocery shopping" you'd need an acre and maximum efficiency. Noted!

I think there's a really interesting pair of problems here:

1) What's my microclimate? How much soil can I maintain with my available time?

2) What crops can I grow and maintain with my available time?

I hope the framework I sketched out helps you consider those pair of questions. I don't know enough about soil to separate the tiers by 'ease of use', so to speak, but clearly you do and so the idea will be much better off with you than I :)

Thanks for taking the time to reply.