Opportunity to knock out a wall - make an 18 x 30 room

Would like to get some feedback

my audio room is 27 ft x 14.5 ft ( With a few cutouts on the couch side - kitchen cabinet and small closet for jackets.  I like no side wall reflections


my speakers are on the long wall due to room functionality.
I have my main system there - nearfield 9 ft distance - listening one foot from the back wall. I have it nicely treated with Real Traps and GIK. It sounds great at my listening spot but the room can overload with volume particularly on cd and I am not getting the perfect integration of drivers nor widest sweet spot.

i would like to sit slightly further back with plenty of space behind me, have clear sound in a larger space and occasionally have audiophile friends over and  sit on chairs behind the main listening spot

my second room works really well for home theatre 18x19 with a 10 ft opening into the kitchen.

I am contemplating taking one wall out between the rooms and making a great room 18 x 30 x 8 tall for my main system and a side 12 wide by 9 deep nook for a tv and the home theatre

i would have to integrate things, rework dedicated lines, perhaps remove a fireplace, it's not the supporting wall but put in a beam support,  go seamless floor between rooms - most likely wood - it has tile in one room - carpet in the other.

thoughts? Don’t do it?

probably lowers the resale value on my house but so

i should note I am a single father -  kids gone/empty nester, have a great contractor 2 doors down and always have my speakerz 3+ feet out into the room

i could do some testing - swap my main system (or leftovers) in the 18x19 room to see if a few extra foot in depth makes a difference - the bigger room opens up into 10 ft wide kitchen

thanks