Maybe what you should do is get the QSS22, but have it put into a 44 cabinet. I'm sure Roger would let you do that. After all he does let you custom build your own systems.

BTW Roger is the owner of synthesizers.com. Just in case you did not know that.

Maybe what you should do is organize your studio instead of redesgining it. Get some keyboard rack/stands to put your kyeboards on. Then get some guitar hooks too hang up your guitars on the wall (BTW makes for some cool artwork). Then get your amps all together and stack them they same way guitarists do on stage. Last get rid of the computers that you don't use and just stick with one. Once you get yourself organized you migh surprise yourself and maybe have some room for your new modular synth.

BTW your not married are you, or have a live-in girlfriend?