I am running a pig club this year, basically someone decides whether they want a whole or a half pig. I factor in all costs, cost of weaner, feed, slaughter and butchering etc. Club members pay a third at the beginning, then a third half way through then a final payment taking into account if they want sausages etc. It does work out a bit more expensive than commercially reared pork but people appreciate its free range and they know where its come from. However I do insist that if a payment is missed then they don't get any meat.
That's a great way of getting committed customers. Well done you. I don't see why crowd funding would not achieve the same result ?
I suspect that the secret is to market the pork as a "premium product" because, as has already been commented, there is very little margin in commercial pork.
Think "artisan..baker.. cheese maker.. brewer... etc" Buy from any of these and you'll pay twice what the commercially produced "equivalents" might cost.
But... there is a market for "artisan pork" . Firstly, ensure that you produce a top class product then market it well, package it well, build a good story around it, and don't be afraid to charge a good price.
Q. Why do people buy a BMW, Mercedes or Jaguar for £30K+ when they can buy a perfectly good Ford for half that price ?
A. Because they can afford it and it makes them feel good (and they can impress their peer group - they think.)