Which Cremona line speaker for surrounds?

Mains will be Cremona M's
Center is Center M

For those of you with experience with the Cremona line, which speaker would you recommend for the L/R surround speakers?

My room setup cannot handle (nor could I afford) Cremona M's for the surrounds, so that whittles me down to either Auditor M's or Elipsa Auditors for the L/R surrounds. My current L/R surrounds are mounted on B-Tech BT77 speaker brackets, which only move the back of the speakers about 2 inches from the walls. This has made me think that using Auditor Elipsas for the surrounds would be a great idea, as they are designed for mounting on a wall with their included bracket.

I listen to a lot of surround music (SACD and DVD-Audio), so I really want to get the best overall match with all five speakers. I also want the best bass I can get from the surrounds as well, which has me leaning towards the Auditor M's. However, I don't have any dealers near me with a pair of Auditor Elipsas, so I have no idea if they sound similar to the Auditor M's or not. I'm very concerned that putting the Auditor M's with their port 2 inches from a wall is simply going to destroy their sound.

Opinions?