I think you have confused yourself a little bit.
Our headlights and these new headlights are the same light assembly.
Ie. You send them your headlights, they pull off the plastic lenses, remove the low beam reflectors, remove the parkers and remove the black surrounds that hold/cover everything on the inside.
Now you are left with the plastic housing that mounts onto your car and the factory high beam reflector mounted inside. Into this the projector is mounted, the new LED parkers are mounted, the new carbon fibre surrounds are mounted and then the glass is fixed onto it sealing it together.
Hope that clears it up a bit.
There is no pricing at the moment, but judging by the price of the Supra glass lenses it would be a safe bet to say the glass lenses would be between $500-$1000, but that is purely my guess.