You can somewhat pan the interior of the RSR cabinet...would take some MacGuyvering.
First is sealing the interior seams with silicone. Depending on the gap of the sump to the end of the bottom shelf and door, silicone a 4-5mm piece of glass about 4" tall to the front to complete the "pan". Any water that leaks out from within, the cabinet will hold it up to a 4" or whatever height of glass you wish to use.
With a controller, ie APEX, all you need is a Break Out Box and 18 or 20-2 wire. Strip about 1/2" bare lead and secure it to the interior side of the pan so the leads are about 1/8" from the bottom. Next you can either drill out a hole for a 1/2"-3/4" bulkhead somewhere to drain either into a drain or plumbed to a transfer pump to that is plumbed to a drain. Another option is using or a high flow peristaltic pump (do drilling required) that will draw from the pan and pump into a drain.
If water leaks out and rises to the leads, it will create a closed state of that assigned switch and program to turn on the transfer/peristaltic pump (assigned plug on the EB8/32 and programmed), email alert, etc, etc, etc.
Also suggest an TPZ (Tilt-Pan-Zoom) IP camera (I prefer Foscam as of 2018) for that so when you do get that alert, you can see whats going on and direct help remotely/shut things off until you get home.
If you get a seam failure, no controller or panning can help you out unless its set in a room with a recessed floor that has been waterproofed
