center and surround speakers for WILSON SOPHIA

Hi to all,

I currently have;
roksan transport
reimyon dap 777 DAC
Audio Researc LS15 Pre-amp
Antique sound Hurricane mono's
and all connected to Wilson Sophia's...
I would like to use my current system for the front speakers of the new hometheatre system that I am about to build. I can't afford the wilsons surround, center and bass unit, overall its so expensive, So I need expert advices... What will suit sophias for surround, center and bass. And also, how should I amplify the rest of the speaker. Any kind of knowledge sharing. I will really appreciate it!!!