As an aside, I just brewed this past weekend a Coopers LME Wheat kit. I added, per the label, some DME (weiss), dextrose, and some hops. I just tested the gravity tonight after three days in the primary and got to taste the juice. Its EXCEPTIONALLY good already, and has lots of great color.
Good luck, I am reading this thread with interest as I like to do specialty grains with either LME or DME kits.