I used to hunt in Maryland and their DNR handed out info on that. You get about 50% of the field dressed weight in usable meat-no bone. I just took a doe in to have the whole thing made into sausage. I figured about 70# field dressed. Deer meat before pork was 32 pounds. I guessed within 6 #. The problem is you already removed a lot of usable meat, so that will not help you.