I have a original D tip sling and oiler from my last carbine, and 5 or 6 30s and 10 or 12 15s, also. I picked up a nice original khaki Type I (stock) pouch "DM Shoe 1943" for $38. It is NOS, and had good pics. The stitching, material and lift the dot were all correct. With such a nice carbine, I wanted a NOS pouch to go with it.
I am leaving it "as is", as I suspect everything on it is original or original to the Underwood rebuild. It will be awhile until I buy it out. I'll post pics when I can.