Or a cheaper route would be to weld in a some right angle steel onto the OEM links. That should beef them up enough for rocks. Not adjustable but would only cost about $20 in supplies and an hr on the welder.
I'm planning to weld up mine (if I can straighten them) this winter. Let me know if any other CO VXers want to go this direction, I could lend a hand or some welding...
...and you're not alone Tom. My driver side link is severely bent but it doesn't seem to throw off my steering much.