Joe, I replaced mine last year. Hated to, but the old pitted glass was a hazard on a sunny day. Since mine is a driver, I replaced it with PPG glass which is not pricey - Wow! what a difference. I got all the parts from Miller's (including the trim which I don't believe is chrome, glass and seals) for about $750 and had them shipped directly to my local glass installer who did the work for $240.
If you choose to get the original Sekrit stamped glass, it will cost a fortune. I believe Miller's can get it, but they indicated the cost would be in the $thousands.
Good luck...hope that answers your question.