Larry:
I installed the air pump under the platform as you are proposing. You should have room under the platform despite the difference in models (I have a gas puller with a queen bed).
I removed the platform (on our coach it was held with 4 screws and the hinge) figured out where to put the pump and routed the air lines through two holes I drilled (actually holesawed, as they were over 1" in diameter) in the platform.
One thing to remember is to remove the gas shocks on the part of the platform that raises
before you remove the hinge so you can remove the fixed part of the platform. I ended up relocating the hinges slightly after the screws tore out of the holes from the force of the gas shocks

.
Newmar already provided outlets for the nightstand, I drilled another hole for the plug in the side of the platform and plugged it into one of those outlets.