I've been using for many years the shoulder length disposable gloves along with some wrist length latex gloves on the inside for cleaning deer. Got my original supply from a buddy whose father in law was a vet. I finally ran out and just order a box of 100 hundred for $16.50 from this link.
http://www.lambriarvet.com/catalog/cattlemisc2.htm
Look for "Gloves, OB Shoulder Length" I've seen individual field dressing kits with a couple pair of these gloves but the price has always been too much for what you got. At this price you can share with your buddies.