So, I kinda dropped the ball on something and need ideas. Posting up the pie in the sky future pics made me realise I made no provisions for mounting the panels and shelving unit at the rear of the room.

Normally not a big deal. Find studs and badaboom. But in this case I only have resilient channel to use and am not sure I'm comfortable hanging upwards of 200lbs on the drywall assembly.....

The only thing I can think of is putting eye hooks into the ceiling joists right now and hanging the panels and shelf later from cable. This in theory would not affect the drywall decoupling. The other option is just putting the panels and shelf on feet that stand off the floor. This makes them more like freestanding cabinets, but loose the floating on wall feel wich I prefer.

Alright Axiomites, lets solve this. Solutions?