I just got my package from Isuzu factory in China, i bought the Isuzu emblem + roof lights from the F series trucks through Alibaba.com 18 bucks for all parts, but shipping was killing 50 bucks through UPS but arrived in 4 days! My rear emblem was a black sticker, and i have trouble backing up at dark, so the lights are functional, attaching them to the spoiler doesn't damage the car, just used some silicone sealand and 4 "self threading" (is that what they are called?) screws.
They are black and are hardly noticed, so i'm happy with the final result.
http://www.flickr.com/photos/17121683@N00/6868229929
http://www.flickr.com/photos/17121683@N00/6868228865