If you consider acoustical treatments for the room as part of the system, that could be the place to start and could take up a considerable portion of your budget. That's a big space you have there.
Best redbook CD playback system for $30k
I have $30k to spend on a stereo system to play back redbook CDs. I like very natural and dynamic "live - you are there", sound and need to fill a 28' x 30' room with 12' ceiling with clean moderate to slightly loud music. I listen to all types of music with emphasis on jazz and classical. There is no "wife approval" to be factored in here so size and shape does not matter. Only the music mattters. I do need to be able to go out and buy this system so all components must be NEW and readily available for purchase. What would you buy?