Someone asked me about the internal panel dimensions today, so I thought it would be good to share the answer here:
The outer panel (the main side piece) extends 0.5" past the internal panels all around.
Internal panel dimensions:Kick-panel: 4.375" x 24"
Door: 24.5" x 24"
Panel between the door and the control-panel: 7" x 24"
Speaker panel: 11" x 24"
Marque: 6.5" x 24"
Top panel: 8.25" x 24'
Top-rear panel: 13.125" x 24"
Rear panel: 62" x 24" (split horizontally into 2 pieces, at approximately 34" from the bottom)
Quick update for everyone: The cabinet is still in like-new condition! The graphics are holding up well, there is no fading. I moved it 3 times already, and the L-brackets are doing fine job keeping everything together. The software is still running well, maybe because I disabled Windows updates and disconnected it from the internet