Looks like a great system.
Could you describe your room - size, speaker placement,e.t.c.
As to upgades, how about upgrading VK60 to VK75SE instead of VK60 monoblocks. WP6 are efficient enough for one VK75Se to drive them.And I saw demo VK75Se here going for 5k, so if you sell VK60 it would be about 1K more than buing second VK60.
BTW, Have you compared P5 with P10 and P10 with other phonostages in that price range ? I'm considering upgrading P5 and wonder what is the difference between them and if you consider this upgrade reasonable.
