I believe the interior dome (and perhaps visor style as well) are different in the E93 vs. the E92. The E92, for example, has a dome light assembly that is in the middle of the roof between the front and rear seats; the E93 does not have this as I recall.
The lighting kit may not be designed with the E93 in mind.
(I'm sorry if that is the case as it would be disappointing....)
Did the vendor confirm this would work for the E93?