In the end, the user will get organic clean vegetables with 40 - 50% off from prices in supermarkets.
Why all the effort with ordering ahead, live streams of growing, and virtual ownership, instead of just having online orders? If your customers can order online (ahead of harvest day), you save all the hassle and still deliver the same product. Unless of course the main goal is to make it like a game, but I don't expect (recurring) customers for that.
I really don't see how you are going to beat supermarket prices by 40 to 50%, especially since prices for vegetables are already pretty low since supermarkets buy in bulk and often times have very favorable deals with local farms.
Supermarkets indeed buy at low bulk prices, but their sales price is several times higher. Cutting out the middle man is beneficial for both farmer and consumer, but distribution is more difficult.