Hi Shriker1, I can't speak for AC Power Outdoors but run my indoor 3 Rail layout with power connections every 6ft due to the crappy track section joints. I run power connectors every 25ft on my DC Outdoor G layout which I get away with because I run Splitjaw Rail Clamps at every joint, makes for rock solid joints. I only had a 1/2 volt drop over 70ft of run before I added additional power connections just to be safe. Do some research on the pattern for power wiring as some Control Systems are sensitive to wiring layout. I run Conventional DC Power Outdoors with RC Track Power Control so wiring is not a factor for me. I run each of my loops on 24v 12amp DC power. I don't have any idea how much AC power you might need, but there is a wealth of knowledge in this Forum, I'm sure someone can advise.
If yours goes well I might be picking your brain to add a O Gauge Outdoor loop. Go for it!
Chris Sheldon