If you join
WWOOF, you will have some great experiences. We are WWOOF hosts and host folks from all over the world, most everyone we get along well with and consider friends. There are farms out there that are not in the true spirit of the program, ask LOTS of questions. What you need to do is to sit down and write it all out, what you want to learn from your travels and what you expect from your hosts. Read it over, re-write it, sleep on it and redo the list as many times as necessary. This will give you a good idea of what to ask your hosts.
advice for your money... 15 grand won't go very far in starting a real farm, however depending on where you're at, 15 grand will buy you a decent little plot of land in this economy. If the real estate market recovers, 15 grand might not do so much... Once you start spending it, it will blow your mind and how quickly it's gone, so be careful and be a real penny pincher. What if the 5 grand you spent would have ended up buying you 2 more acres? I would worry about the land first, the rest can be gotten in smaller increments of money. I would really watch out about investing together with other people in a farm, that can get ugly very very fast. If you do, make sure the land is yours, and have others purchase the equipment, etc... that way, you're covered when/if things go bad and at least you won't be broke with no where to go. With that type of thing, "Friend A" buys a
tractor or whatever power equipment needed, those are his (or hers) and if things go bad, they have a real thing they take with them. "Friend B" buys a
greenhouse or two, if things go bad, they can take them with them... etc... Money changes relationships and I have seen LOTS of communal type arrangements fail due to arguments over VERY silly things.
For land, I can give you advice, but whether or not it is able to be followed depends on where you're at and a little luck... You need
water, a constant source of water. A VERY good well would do, but a decent little spring that can
feed an irrigation
pond is far better. Make sure the spring or creek flows year round and isn't just a seasonal one, ask locals not the realtor if the little springs dry up, if it dries up during a drought then that's when you would need it the most. The other biggie and just as crucial, is proximity to your market. Spend some serious time figuring out what you want to grow and who will buy it, make sure they'll buy it, have a backup plan in case that group doesn't buy it, then have a backup plan in case no one buys your "cabbage" or whatever it is you're growing. Market research is the most important thing you can do, don't expect that since you grew a bunch of tomatoes that they'll
sell. What if everyone else at the farmers market is selling tomatoes?
I hope this didn't sound condescending, I'm just trying to offer a little advice since it seems like you are seriously considering starting a farm
You will enjoy WWOOF though, I wish I had known about WWOOF before I started my farm, I could have saved myself LOTS of mistakes.