In-Wall Speaker Placement Question

I need alittle help. I'm putting my plasma above my fireplace due to the living room being narrow and if I were to put the tv on the other wall I would have to have my couch on top of the fireplace. So I start tearing out the drywall and studs around my fireplace to replace all the termite damage. I find that the bricks for my fireplace go up alittle more then I thought, So this takes away the idea of me putting the CWM650 center channel below the plasma. If I were to put the center channel below the plasma, the tv would be way too high.

So this is my problem.

Should I.....

1. Put the center channel flush against the wall above the plasma? Would this basically make having a center worthless, because its too high?
2. Put the center channel above the plasma but builg an angled box that I would drywall in to look alright(but not beautiful)?
3. How would a Kef Ci 200.2QT mounted in the ceiling mesh with all the cwm650's? This is the only speaker I could see using in this application.
4. Please give me some ideas!!!!

Thanks Guys/Gals