Hi Urban Farmer,
I reckon all the "wise" answers have been given, but I would second the recommendation to "go where your heart leads". I'm sure it won't be easy, but then, is life ever easy? And a lifetime is a long time to be wishing you were doing something else!
I'd recommend you research well before committing to anything, to get the best security in financial terms, land rights, tax obligations and opportunities, and (?) inheritance law. And obviously, consider soil condition/fertility and 'what grows well' where you're thinking of going. And could your plot support a surplus of something to sell for cash to pay for things (like taxes and bills) for which half a pig isn't accepted!
Some others on the forum have done or are doing what you're thinking about, so maybe read back through a few posts, and maybe ask them what went well/badly, unforseen problems, etc...?
All the best, and I'm sure many of us wish you 'bon chance'; some with a degree of envy, even..?
Cheers John