Your setup sounds just great. I also brood outdoors from the start. While I don't know this Plamandon stuff, I do keep shipped and newly hatched chicks indoors for the first couple of days under Mama Heating Pad, just until I KNOW they know about the Big 4s - how to eat, drink, and know get warm and how go to bed as the sun goes down. I'd never do that first day or two with a lamp, because I want them to understand day/night cycles from the start and they don't need to eat all day and all night long. But as soon as they've mastered the Big 4, out they go. The only exception is those suffering from shipping stress. I want to watch those. You can either rig a second, smaller heating pad in a box in the house for those couple of days, or simply transfer the heating pad setup out to the coop when you're ready to move them
You've got this! Lots of us do it, and will never look back. Any one of us is always available to answer questions as well.
@Little Fuzzy you are well on your way, by the way it sounds. Keep an eye on that Silkie, and expect an occasional reprimand from an adult as the chicks learn their place in the flock. If it gets out of hand, you can step in, but for the most part you should see that they figure it out pretty well. Seems most flocks end up with one grouch!