The "weak link" in your design is the RF receiver. What I mean by weak link is the item with the greatest chance of failure for one reason or another. Be it receiver issue, transmitter issue, losing the transmitter, dead transmitter battery, etc. If this happened on the first day of a trip in the boonies where the local Radio Shack is non existent, a backup would be nice.
Personally I would put a small junction block before the receiver. I would do a fuse block after the receiver with an extra spade connection terminal for each circuit. Then worst case scenario in the event of problems you could have a couple of small jumper wires that you simply just plug in to bypass the receiver if there ever is a problem.
Granted losing cabin lights are not the end of the world, but having a simple fix option in the event of a problem would be nice.
My two cents
