will, i also live in a remote area and have cheaply and successfully fed raw for 3 1/2 years. it just takes time and patience to line up your suppliers, but once you do, the whole thing is very easy.
my breeder is in florida and she's feeding something like 15 mastiffs. she goes directly to a wholesaler who delivers on a regular schedule right to her house. she used to go to an organic meat market who let her buy in bulk and charged her only .10 cents a .lb. over their wholesale.
we don't have large meat processing plants in my state, so meat is expensive, even though we are in cattle country. right now my best supplier is the meat department at the albertson's supermarket chain. i get case lots of whole fryers, pork necks, turkey necks, beef hearts, beef ribs, and beef liver at very good prices. the thing that is great about the supermarket is they break the cases down and individually package everything for me to order. so when i get home all i have to do is dump the individually wrapped portions in the chest freezer in the garage. simple.
i probably average $40/mo. for a very lean mastiff with an incredibly fast metabolism (he easily consumes 5 lbs. of RMBs a day).
veggies are free--we just save the trimmings from cooking and also pull stuff from our garden. we get eggs and cottage cheese from costco pretty cheaply. the only supplements i use are fish oil capsules and dried kelp powder.
it's important to feed the ground veggies, i've found. once a week minimum, twice a week is better. i had a huge vet bill when i neglected this and my boy got impacted. doggie enemas are NOT fun. pork neck bones are a common culprit.
if your dog doesn't like veggies, mix with beef liver and blood or a can of salmon or mackerel. i wait for the salmon to go onsale and buy several cases at once. we got it for .88 cents/lb. last time.
i also am always on the lookout for unadvertised specials at the supermarket. some saturdays i'll just visit a few markets and pick up drastically discounted stuff.
the other source, which is free, is wild game scrap meat, spines, ribcages, and heads. make friends with your local meat processor and go collect the goodies during hunting season. where i live, it is illegal to charge for it. you just need the containers, and the stomach for it.
i save giant yogurt and cottage cheese tubs all year, head down there with a pair of rubber gloves, and go to the back door where they pull the tubs of wild game scrap meat for me to pick through. i always make sure it smells fresh (when it is good, it smells delicious even raw), and i fill my freezer. i date each of the tubs and freeze them at 0F for ten days to kill parasites.
don't ever feed any part of the GI tract from wild animals. also, don't feed weight bearing parts like legs. the bones are too hard and can break teeth.
lastly, don't feed bear or mountain lion as they carry trichinosis.
working Mastiff