Thanks everyone for the comments and pictures. I hadn't even thought about the ceiling mount for RL, but that might be an interesting option. I'm afraid the WAF might rule that one out, though.

I hadn't considered widening the front three speakers, either. With the current speakers, I find they need to be close, but I may try out a wider soundstage with the better speakers to see how it works.

I ordered from the outlet, but they're beech speakers, and are estimated to ship in a week. Hopefully I'll be able to experiment with placement soon.

Thanks,
Bruce