What a coincidence, I have a video coming out tomorrow for just what you're looking for.
https://wayalife.com/showthread.php/60098-CB-BAR-Aux-Switch-Mount-SWITCH-PROS-8-or-12-Switch-Panel-CB-Radio-Relocation
https://wayalife.com/showthread.php/60098-CB-BAR-Aux-Switch-Mount-SWITCH-PROS-8-or-12-Switch-Panel-CB-Radio-Relocation