Thanks DanDan, any praise form such a "respected member" is a nice confidence booster
As for hanging, all the walls are concrete I'm afraid so I'll use the equivalent anchors. I was thinking screwing those metal ring/o anchors (seen on pic #2) on the inside of the frame and using wire to hang them much like you would a painting. What do you think? When it comes to the ceiling, I was going to try something simmilar only using four anchors per frame. Maybe I should build a "proper" cloud instead of hanging two of these panels above the listening position?
I think Statoil has all the oil and gas it needs