I got lucky and found a NOS pair about 2 years ago for about $450

There are 2 places that I know of that do great jobs restoring them

http://www.totallyautoinc.com/ not sure of the cost but I saw a pair and they looked great.

http://www.krusinmoons.com/NOSReconditioned.html
I have seen their work and the bezels look better then new. $1,800

I would not go anyplace else other then those 2 venders