Random status updates:
Battery relocate still doing fine. Haven't had any issues starting the car, etc. Still looking around for what to do about switching/protecting in the rear though. Ideally I need something that makes it easy to disconnect the ground (a switch or quick-disconnect plug of some kind), and I also need a fuse/breaker that can take starter motor current draw. Turning up a blank on an ideal solution so far, although many things look close.
Got my Hotchkis swaybars in today. The delivery truck driver was very envious when he saw the box, and then the car
These will probably be installed tomorrow evening.