Well, you can wait for the Aux power supply. Not a big deal to wire that up at a later time.
@Greg Nagy ,also suggested to wire the crossover pairs together with one controller to save space. I second that idea.
"In order to control the two switches in tandem. Route the three wires from the switch controller to the first switch, then run wires from the first switch to the second in the same order. Red to Red, Green to Green, Black to Black."
The thermostat wire is the easiest that I have to found to source. I purchased a dual stapler that shoots the round and flat staples. The round staples are great for organizing the wires under the layout. The depth of the staple (staple length) is selected to prevent crushing the wire. Limiting under table time on your back will become a priority.
Some use a simpler method and feed the cables through hangers leaving the wires loose.
Find what works for you.
The switches need a home run cable from some controller. That can't be avoided.
