Ditto.
My understanding would be that the BP10s work nicely with whatever surrounds you choose. QS8s would be awesome in that room.

The center is supposed to be timber matched to your mains but not killing a budget is probably even more important so that you can begin enjoying your room right away. You can always change things up later on, if the need or desire strikes you.

Enjoy!!

With great power comes Awesome irresponsibility.