A couple of thoughts come to mind on this, since you replied that you were considering the issue;
A) What about heavy-duty hinges, BUT, removable pins, and plugs on the wires - just use them as disconnects - and drop the lights (with the outside 1/2 of the brackets) inside the cabin when going into the rough stuff; or
B) Again, mount heavy-duty hinges on the brackets (vertical cut at the frame-line); bolt rubber bumpers (1 ea) on the outside (swinging) 1/2 of the bracket, and an adjustable catch to the inside 1/2 of each bracket (Hinged bolt with wing-nut comes to mind - have to notch the outside edge of the outside bracket as a slot for the bolt to engage).
This is a little more work, but, once done - the bumper keeps the lense from smacking into the windshield and cracking / the adjustable bolt makes for an easy quick-lock, and will keep it from coming loose at the wrong time. Like I said, more work, but ... really ... when you get done - they would be sooooo primo!!
I don't know how your luck holds but - I'm pretty sure that if I had lights like that, and had them swung around pointing back in, SOMEONE would say "What's THAT switch for...??" .... and I'd be face-to face with a high-beam off-road light .... at JUST the wrong time (sooner or later).
I'd have to have that switch under a locking latch.
Just my $0.02. BTW - sweet rig
Oh yeah - My PO attached Jeep CJ-7 side mirrors to the hinges of my '75 FJ40. Bolts lined right up. Doesn't look like it would work there, though; especially the offside mirrors (have to be through, or in front of, the PS light)
