Help Mark IV NAV Radio Rebuild service

[higreenx5]

Hi

Search does not work on mobile so I need to ask
Are there any places specialized in repairing the Mark IV radio nav unit?
I tried to just replace my screen that was spotchy and the 1st screen I bought was too wide
The second screen fit but I damaged the ribbon cable to the screen
3 cables later I got one that was close
The lower screw holes that hold the clam shell together are broken because of the 1st screen
The small white wire got cut somehow and I tried to solder it but I failed to mark left or right since I thought 1 had markings all the way down.
The screen is still blank and I am DONE TRYING TO FIX IT.
Who is reputable to do this repair and not charge me more than this POS is worth?