Help finish my 150 gal stocking (africans)

So, I'm nowhere near the point of buying fish yet, but I like to have a game plan ahead of time while I'm doing all the set up. I kind of have an idea of what I want but was wondering if anyone had any suggestions on what else to add. I think I'm pretty well stocked but I think I have room for(and would like) one or two show/center piece fish. I'm thinking something along the lines of 8" or so? I just think it would be nice to have one or two larger fish among all these 4-5" fish.

Any suggestions that would be temperament compatible with the current list below?

Be forwarned, I'm a lake mixer... I'm aware of all the arguments for and against, thank you.
I'm even considering going so far as mixing continents by adding a Green Terror as a center piece fish. While I have experience and success with mixing lakes, I haven't done this before, so if I can find a suitable African substitute, I'll likely go that route. Lets not turn this into a pro/con mixing, I'm just looking for your suggestions.

This is what I have planned so far:

1m/3f - Yellow labs
1m/3f - Pseudotropheus cyaneorhabdos (Used to be M. Maingano)
3 - Pictus cats
1m - Neolamprologus brichardi
1m - Red Empress


So, any other ideas? Like I said, a large centerpiece would be nice, but I would also like to add some more red if that is possible. Are there any red mouth brooders similar to the yellow labs and Maingano?

I've been looking through profiles and my head is dissy. There are so many, and I have no idea if I would even be able to get ahold of some of them.

Wow that is a fantastic fish! Not sure how compatible it's diet would be with the other cichlids though, being a vegitarian. Besides, I was hoping to have some java and Anubis in this tank.

Well if they can deal with NLS cichlid pellets, I suppose I could throw in some zucchini now and again.

Catfish:
yeah, the Pictus cats I listed in the OP. I like my cats to be supplemental, not centerpiece.

What about corkscrew Vals? Will those survive the fulu?