How much rrom under/over the screen is there to work with?

Some ideas to think about:

simply put a shelf under the screen and place the Vp150 on it, the VP180 would probably fit in this manner as well, or an M2, M22 on a short stand under the screen. Do you have a tiered seating arrangement? If so then a second center channel mounted above the screen would be recommended, either another VP150 or an M2.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70