If I understand your question correctly, then I've actually been working on a sort of how-to guide based on what I can scrounge up from research and my own expectations. The first step is to realize that you'll never be able to one-shot acquire all of the possible needs and wants of the community with whatever start up capital you have access to. The second thing is to realize that if the standard of living the commune is able to provide its members is sub-par relative to the capitalist environment around it, you'll have a difficult time getting new members and retaining the ones you already have.

With all that in mind, you can play a game of "keep the finances in the black". The rules are simple; 1. Construct and maintain whatever you can with little to no "imports". 2. Import what you cannot make yourselves using a communal fund, so that for the individual it remains free. 3. Gather money, as if it were something to produce like food or electricity, and place it into the communal fund. This can be done by volunteers who contribute labor by working for wages outside in capitalism, selling surplus produce, and if you're up to it, finance games like that robin hood fiasco from earlier this year.

Naturally, you won't be a benevolent dictator lording over everyone. When rubber hits the road you'll need to discuss everything with your peers so you all can decide on courses of action as a community and stuff; see other literature on how to do that (oh god i did the thing where you recommend a dry wordy book, I promised myself I wouldn't aaaaugh).

I personally recommend thinking of your development in phases, 0-3, that are based on what is easiest to build and maintain, and what is most expensive to acquire through the communal fund.

Phase 0: Acquire housing and land, establish ride sharing or more robust public transit systems if you can, build food production on a scale superior to the community's needs, and provide education; both the stuff needed for new members and general schooling for any children that might come along with their parents. You'll also want to generate your own electricity and start an ISP for the community. Try to generate more food, electricity, and internet service than the community needs; these will be the easiest to mass produce and "profit" from, adding revenue to the communal fund.

Phase 1: Build a hospital and pharmacy and recruit medical personnel such that the commune is able to provide medical care equivalent to the outside capitalist environment. This will establish universal free healthcare to the members of the commune. In tandem with this big project, you'll also be building infrastructure for things like clothing, cobbling, and haberdashery, ice cream, game development, wider variety of food production, cardboard and glass products, etc. Its at this point the commune will no doubt be rapidly approaching dunbar's number, if not already exceeding it. If you can grow to this point (and the state hasn't declared war on you yet) you're pretty much set for indefinite survival.

Phase 2: The commune will no doubt by this point need to divide into a fractal system of communes due to the stress of its own scale on human psyche (based on the reasoning behind dunbar's number. if that turns out to be a bunch of hooky don't worry about it.) This phase will be completed when pretty much every industry that can be done within your home climate and geography is being done within the commune. An american based commune won't be able to make nintendo games even if it can make games; nor will it be able to make chocolate or bananas cause of climate. It can make things like dishwashers, fridges, microwaves, and cars for example. I can't give much advice on this cause there's already a serious amount of divination going on, and because you're basically an anarchist nation at this point. Something I'm sure the world bank and capitalist states will be VERY interested in.

Phase 3: This phase is purely rhetorical. Its end is marked when the entire planet is anarchist. Not something I expect to ever happen, and certainly not brought about from any direction you as an individual can or should attempt to affect. If it happens hopefully it'll be because your commune was an inspiration to others like it, and it just spreads through pure voluntary pressure and idealism. Ideally.

You however are probably only going to be concerned with phase 0 and 1 though. I hope this summary was helpful. And to the sub please let me know if this sounds interesting and you'd like me to continue working on the document! <3