I made my own with aluminum angle, UHMW sheeting 3mm thick, large head pop rivets and some U bolts. Have pix in my link I think should be in P5 mods. Stick stoppers will not protect 100% but will aid for sure. When running in mud or snow you should clean out around the lower boot area as debris will build up there.
Pretty easy project UHMW is great to work with and standard wood working tools will work well to cut, drill.
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