Have you tried to just buy a Show pig after show pig season is over? Lots of them out there. We have a sale here in Randolph County at the first of February. Where the kids have the option to sell there pig. Most are 200-325lbs. and bring between $3-500. And all you have to do is carry it to the butcher.. have you looked into buying corn from a local farmer, maybe ear corn also? I wouldn't get to caught up in the "GMO" feed, myself.. Just my opinion. And as far as water. If you don't have a hose you hook up to it, get a 55 gallon drum and put you a pig nipple waterer in it. Or get some 5 to 6 foot long 6" or larger diameter PVC pipe and tap it for a nipple waterer, stand it up in the corner of the pen and tie it upright. put nipple in the bottom. Tractor supply or any farm store should have them.