Cool that will work. I will have to try his method for getting the butthole out. I usually get as close as I can to getting it out and cut the pelvis with a bone saw when I get the deer back to the truck. The only thing I do different is I dont split the pelvic bone in the woods or the breast bone to much of a chance to cut yourself with both methods. You need to split the pelvis to get the butthole out but I do that at the truck. I never bother splitting the breast bone since you can reach in there and cut what you need to cut without adding the extra work. Plus the meat stays cleaner when you drag it out if the body cavity has some structure to it. IE the breast bone isnt split.
You may want to get tall rubber dish gloves for gutting gloves they are durable and reusable.