Yes you can cut & peel off the outer shell. It likely attaches to the tube, like a Coll-O-Crimp. If so, just cut it away from the tube. For ferrule you could use an AC ferrule, Oeticker clamp, or even screw clamp. One idea is the various PEX ferrules at Home Depot plumbing. Best rubber hose stock is viton-lined "for bio-diesel".