With the kangaroos they stay where they fall and within a week or so are pretty much gone. Sometimes the farmer will use them for non-commercial purposes, but removing them from the property is not permitted. With the deer we take them and process them for consumption, non-commercial.
I've got a could knives and always have one suitable for cutting and one for general use when I am out hunting or culling. I'll be keen to see your new one. Feel free to put it in The Pew.