I think the PC’s are a great choice too. The 3000 series(not including the micro) is probably the best value in SVS’s lineup, but you might be just fine with two PC2k pros. They would take up much less space. And while you do need to consider the whole space, if you can get a good FR in that small area, I think you’d be good with the PC2k’s.
However the pb3k’s would be better if you can fit them in the space.