Very kind words; thank you! While I'm still young enough and strong enough I'm a huge speaker fan! When I'm old and can't hack hauling them up and down steps, I'll probably turn into a monitor lover. ;)
It's not visible in all pics of the room, but I have placed sound panels on the head wall at right angles. The speakers are about 4' from the front wall (I have precise measurements for the footers, but this is a generalization), as the pic may be a bit deceptive looking. I did so to accommodate larger planars especially. I was disturbed by the head wall reflection, and I wanted it to be diminished greatly. That, along with plenty of diffusion/absorption has allowed for sizable speakers, both dynamic and planar, to be used well in the room.
Also, the construction of the room is a huge factor. I have a double ceiling (seamless solid ceiling underneath drop ceiling), 7.5" thick walls, thick Berber carpet with 1/2" underlay over cement, so the room can handle larger speakers quite easily.
I tend toward big power, so someone else's 200wpc seems small to me. 300 is a good staring point for most of my floor standing speaker systems. Of course, when I'm working with tubes I have to adjust, but SS I'm pushing for minimum 250wpc. I really enjoy what 500-1,000 watts does for speakers. In some ways a person has not really heard a speaker until they've heard it with that kind of power. It's very addictive.
The Pathos Classic One MKIII's in bridged mode are superb with the Kings. I was surprised how well they handle the speakers, "with authority" as they say.
The Prince II will also be showing at RMAF, so if you're going you can check them out. I know it's a bit smaller, a bit less expensive, and maybe even a bit more efficient.
I know one thing, it would be a radically different experience from your Silverlines!