best speakers for tubed sacd 5.1

I am building a multi-channel sacd system .so far I have a sony xa 777es sacd player and only using the two channel with vtl 5.5 preamp biamping b&w nautilus 802s with a classe ss ca300 on the bottom and a vtl st150 on the top.Sounds Great but i want more. so i bought a conrad johnson 75a and a sony tap 9000 es for direct analog pass-thru now i still need a htm1 ,4000asw sub and some rear speakers. Its starting to get a little expensive and im looking for help .Does anybody have had any experience matching 802s with a surround system from one of the other lines or will there be too much difference in the drivers? .I a plan on useing a either a mono block for the center or the 75a with the mono switch on in witch case i still need a tube amp for the rears or upgrade my fronts with some monos put the st 150 in the rear this is for dvd audio and sacd only. Thanks