if you are serious, i'm not really selling just the lens on this setup, but i do have a spare hi yellow lens (great for overcast to night skiing) btw it's brand new: $55 shipped in the US
that's for a HI yellow lens (normally retail price is $70) $20 will normally get you a persimmon lens or a beat up "specialty lens" such as the hi yellow or black iridium for example. Let me know if things change.