Again I was so busy at work!
But I did some job on mod too. I cut off all sides from case (front, top, back, bottom). So it looks like skeleton
. On other side I was able to re-thing everything. So I finally finished motherboard tray to fit case with no problem. I had problem with GPU standoff (angle was bad, so I could not bind GPU correctly to motherboard tray).
I found some old aluminium(+1mm thickness) in garage, so sides will be from it covered by colored PVC to get clean look.
Tomorrow I will make photos and post it here.