I agree with the 200c recommendation...I think...?(lol)
It's been a while for those, but I think the 200 had like 3 drivers, including a coax mount, right? Should be more dynamic.
Anyway, I also concure with dipole surrounds situation, for easy setup, easy integration, non-fatiguing/distracting enveloping sound. I find that it's much better to have a solid main stage, and just let the rears be "enveloping" and more diffuse personally! This is especially critical if you have multiple seating possitions, where people WILL sit closer to one rear than the others. Invariably you get that domminating, irritating speaker in your ear, that pulls you completely out of the movie, and BANGS IN YOUR EAR ALL NIGHT LONG, till you wanna kill someone!!!!...lol
dirrect firing can be done well however, but that's tricky. ALSO, and AS IMPORTANT,if you ask me, is that placing dirrect firing speakers near walls is usually a boomy experience, and yields "un-flat", unaccurate response. So basically, the speakers don't sound right (without serious tweaking and EQ'ing), er um, good! At the very least, if your mains are set up well, your rears sound nothing like them this way!
Unless you've got lots of room, and can get speakers susupended from the ceiling in the back/sides, this is usually "not as do-able" for stellar sonics IMO.
Again, can be done. But most fall short!
Again, It's "all a balancing act!"
Still, I would get matching type speakers from Kef If it were me...and possibly dipoles if you can. maybe some research is in order...but maybe they don't...lol.
In this case I think the little 100 or 70 monitors(forgot) match. Might need some EQing help though, to do ir right.