Really need some advice on center channels

Try a older Mertin Logan cinema i. Awesome center for around $650-$750 here.

I am about to order a Salk Soundscape center channel (to use with Avalon Eidolon Vision mains). This center is $3,000, but from a manufacturer direct operation with no overhead. Avalon will release a center that has the same level drivers shortly, which will sell for 10-15K. The midrange driver is accuton and the tweeter is a ribbon. This should be an extremely fast and transparent center, and match very will with electrostats. Bit of a leap of faith of course....

Get what ever center matches your sides. That is the most important thing. If you get a center and it sounds different they will forever be fighting each other and your imaging will be screwed up.