PS: if you are happy with ABS, then here is a [incomplete] list of backlit full size mech keyboards:
Ducky DK9008 Shine II
CM Storm QuickFire TK, Trigger
Gigabyte Aivia Osmium
Rosewill Illuminated RK-9100 (iRocks)
Mionix Zibal
Thermaltake meka
iOne: Razer BlackWidow Ultimate, QPAD MK-80, QPAD MK-85, iOne Scorpius-M10BL, iOne Scorpius/XArmor U9BL, Tesoro, Max Durandal, Nighthawk X7, X8, X9
Corsair Vengeance K70, K90