I can't polish the glass myself. I had given my glasses to a guy, who have done it for me (i know him very good)...
If you want to have these glasses polished, you should send me your glasses. It takes about 2 days, to do that, and it costs about 150E (for a pair). Than i can send It back to You. It would be easier if I buy glasses here, but they are very expensive (about 120E for one side - used of course)
About lenses. I have inserted them myself. I took the lenses from the broken headlamps of MB. I had to drill a lot of the mirror which is now only for optics. The lenses are fitted with some kind of plastic material (like glue POXILIN). It has a very good adhesion and it is very very strong, and hard. (i have a lowered suspension, and there was no problem with it on the holes).
All the preferences are still working. You can move the lenses as a normal reflector (cause the lenses are fitted into it), so no problems with setting the lights correctly. I also have the manual setting from interior (as in original with the vaccum), so you can move the lights up, and down any time you want (no differences with the original ones).
The only problem is that there is no automatic (but manual) leveling which is required for original xenon lights...
It was not an easy modification. It took me 2 days to do that correctly, and to set the light stream, not to cause blindness to other drivers
Ps. There would be a nice effect if the reflector with fitted lenses was painted black (shadow line), but i like it as it is...
Ps2. I have adapted the bixenon lenses to my father's '95 A8 too, so if somebody is interested i can give some photos...