Mr B, other than fruit of the vine, are heirloom seeds and sets local to your spread available? local skills, tools and wisdom too? hands to delegate or team with? what's the lay of the land? nosy aint i? years gone by i worked up to a 200 x 50 foot garden. sounds trivial till you weed it, lol. were i still in that mode, might work a 'lasagna garden' system. a section within 10 ha could mos def keep and feed many people busy. anytime you feel like posting something about that aspect, i'm sure to be looking forward to seeing it, wherever it may appear. just in case,
https://www.motherearthnews.com/organic-gardening/lasagna-gardening-zmaz99amztak