Every time this topic comes up I say the same thing. If you've never worked on a farm and have some kind of romantic idea about it then you shouldn't do this. Farming is hard work. Modern farmers have college degrees, millions in equipment, and a vast amount of knowledge and experience you do not have. If you're thinking of doing this and do not have experience go work on a farm for a year before you buy in.
The number one killer of open source projects is funding. It is demoralizing to spend years on something that isn't going to really put food on the table, and we do not live in a society that allows us to fully chase our hobbies and passions with complete abandon to that fact.