A local producer of grass-fed meat. I am very lucky he delivers to a spot two minutes from my house. He isn't cheap, though, charging between $2.50 and $3.50 a pound depending on what meat you buy, but it is worth it to me for the convenience and the quality of the product. I am very wary of cheap grocery store meat these days.
Large scale abattoirs sometimes sell meats geared to raw feeders. Not sure what area you're from, but maybe you can call butchers/abattoirs close by and see f they sell cheaper by the quantity and cuts of meat that are not consumed that much by people (i.e. hearts, lungs, brains, organs, etc)