SF Auditors or Mcintosh Amp?

I've got an audio buddy in the neighborhood with SF Cremona driven by Mcintosh C220 and MC275. His system has the musical yet pleasingly detailed sound I've been looking for. Really great with female and male vocals / blues / jazz / and the occasional orchestral piece.

I don't believe my room will accomodate the Cremona (13 wide x 19 deep x 8 high, back of room opening to stairwell, and listener 9ft from speakers set 8ft apart) but was thinking that Auditors would work well with sub (ACI Titan).

Current system: ACI Panorama monitors highpassed at 85HZ - Modwright SWL 9.0 w/mullard 5ar4 rectifier - Odyssey Mono Extremes - Titan Sub lowpassed at 85 HZ - Meridian G08.

Clean, dynamic sound with very good imaging and soundstage which I've been pleased with for several years. However, for me the SF + Mc synergy has a pleasure factor worth pursuing.

To maximize WAF, I only get one purchase a year. Would I be better off first buying the SF Auditors or Mcintosh amp (MC275 / MC252 / MC402) to make the biggest jump to the sound I'm trying to get?