I have posted the pics of my MS 70+ ... wall mounted.
BTW, I was a noob when got down to buying the speakers around 8-9 months ago. Now, as far as satellites go, am NO MORE a noob. So, if you are looking for an 'informed' suggestion, here it is ....
I shan't call this a risk, but an extremely efficient and VFM combination from ALL perspectives. I have been giving it a serious thought, but due to no-use at my end am not implementing the same.
Why don't you guys try this combo .......
Front left and right speakers ... JBL Control 1 ... price @ 6.5 k/pair
Rear left and right speakers .... JBL Control 1 .... price @ 6.5 k /pair
Centre speaker ... 3 way JBL again .... price @ 10-12 k
Select a rip roaring subwoofer later (if you don't have budget now) from ... HSU / Velodyne / SVS .. check price, should be @ 40 k.
The above can and WILL fill any room @ upto 300 sq ft. without stressing the AVR by much.
Am very impressed with the JBL Control 1 speakers. Using it currently with a Topping TP20.