Black Box 19U Wallmount Rack 12-24 Tapped Rails Holes 75lb. Capacity

ok so I've got this big black Network cabinet that I need to mount on this wall up here and it needs to be as high as possible so that it's high enough that when somebody walks in through this door here they don't hit their head on the corner now that may not be possible but I'm certainly going to try to get it up as high as I can so having said that your first instinct might be to raise the cabinet up you know have someone hold it for you while you try to put the bolts to the back but my method is to first strip down everything off of the cabinet that you can to make it as light as possible so it's got side panels see that little key lock there I take the side panels off take the front class panel off take the other side panel off sometimes they store hardware in there I'm going to take that out ok so once it's light as possible but the second thing I want to do is make life easier is