New to pedalboards - Help!!

I am completely new to the world of pedalboards and I have just purchased a Pedaltrain Classic 2 board and Truetone CS7 in order to finally regroup all of my pedals together. I was wondering about the order in which to place my pedals and if a Truetone CS 7 would be sufficient to power all of my pedals without incurring any additionnal noise. I have currently 8 pedals that require an adapter but only 7 outlets on my CS7. I still have the possibility of returning my CS7 and getting a CS12. Any help would be appreciated.