There are bolts set into the concrete of the footer that stick up out of the top of it. There's a flange on the bottom of the supports with holes in it. The supports are installed by lowering them into the footer with the bolts going through the holes in the flange, and then nuts are threaded on and torqued down.
The brakes are on the same side of the track on both sides of the ride. They'll just have to move the brake fins to the other side of the train's undercarriage, and turn around the chain clutch assembly so the chain and rollback dogs are going the right direction.
I'm not maintenance nor an expert in PTC trains, but I think that's the gist of it.
AZ/Oktober:
Adventure Express
Delirium
Drop Zone
Top Gun
Coney:
Vortex
Flight of Fear
Firehawk
Racer
Rivertown:
The Beast
The Crypt
Swan Lake
White Water Canyon
Nick/IS:
Eiffel Tower
Reptar
Fairly Odd Coaster
SDATHC
I'm actually a little glad they're doing this. I've always found backwards to be about the same fun level as forwards, but a little uncomfortable. I'm looking, well, forward to riding that side facing forwards for the first time.