That is a cool interior layout!!!
I'm a "RB/EB 30 guy" by preference (the long galley arrangement just seems the most functional for doing interior cooking/lounging).....but what that SMB has done (that you noted) by sliding that gaucho rearward, and having two removable captain chairs located forward of that....well dang, that just looks beyond fantastic for getting an almost "RB/EB 50" style ease of loading/passenger carrying awesomeness.
Perhaps the ultimate interior layout??
Looks like some "best of both worlds" from both 30 and 50 to me for sure.