Hi folks:
Totally new at this, so bear with me...and excuse me in advance if I sound

I posted my issue with a newly acquired cabinet on the "main" forum. The control panel is too steep of an angle, and I would like to lower it - flatten it somewhat to maybe 10 degrees or so; however, I can't simply lower it because of the angled wood frame that acts as the frame for the LCD monitor.
The control panel is posted here - as illustrated it's resting at a steep angle on and at the bottom of a piece of wood, which is the bottom of the monitor support frame, and is held by screws (1 hole on the left, and 1 on the right).
A. I believe I need to removed the portion "A" as noted in the pic.
B. In doing so, I will need to shift the entire monitor up, and with that the angled bottom wood support will be moved up as shown in the picture and labelled B.
Upon doing so, I will be able to lower the control panel to the degree that I want.
Questions:
1. So can all this be done with the cabinet sides still attached?
2. What tool/technique do I use?
3. When I go build the monitor frame again, how do I secure it to the cabinet side panels?
4. With the control panel 'flattened' to say 10 deg, how do I secure it? [I'm assuming that I'll need to place a horizontal piece of wood under the bottom of the LCD monitor frame, which stretches from the left to the right of the cabinet. The control panel will rest on that and held by screws?
THANKS for any tips anyone can offer - appreciate it much! I hope that I made some sense.