I have a set; lens are cracked and too be frank havnt used or touched them in years. They should wolrk as they were removed and were still working at the time and the lens cracked after the removal. Selling for 100.
Not sure if you can buy the len's for them seperatly but even so; if you have a broken set i guess you could just switch them over? I believe the single bulb alone sells for anywhere around 50-100 on ebay.