Been looking for some vintage Oakley MX goggles. I have been looking mainly on eBay. Seems like there are a ton of ski goggles, but no MX goggles. Any other places for me to look to score a pair. I am looking for any old pro frame or O Frame that has Oakley on the strap. Mainly looking for black, but would be interested in other colors too. Also, will the older ski goggles accept an MX lens. If I bought a pair of ski goggles could I take out the lens with the vent holes and put in an MX lens? Thanks.