Bulk, no clear covers sold any where, especially for facelift headlights since you can't take them apart.
IIRC, 3M does not have any coating. I used it on my E39. It worked great with the drill attachment. You can use Lami-X to cover them, but it's a film. Sylvania kit includes a protective spray which might be what you're looking for.

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00 E39 DINAN S1 //M5 (82k miles)
06 E53 DINAN 4.8iS, born 2/18/2006 (126k miles) http://www.xoutpost.com/bmw-sav-foru...s-my-dslr.html
90 Straman Z32 TwinTurbo Convertible, (1 of 44 ever made) 5 speed, 444rwhp/451rwtq
01 360 Novitec Spider F1 (26k miles)