As long as you aren't sucking in actual rain you'll be fine. That'll vent your light heat, now you'll have to just worry about radiant heat. You'll be fine with radiant heat and ac. Vent your tent like normal (carbon filter/fan on a temp switch) I'd use a 4". Exhaust that outdoors, too. Intake will be the air leaks around your ac. It'll take care of smell. Run a small humidifier in the tent if you have to for veg.
The computer is a Surface Pro 3, I dropped it in a parking lot and they replaced it, they let me keep it. It still works, just no touch screen. I look up stuff if I need to with it.
I kind of changed gears and went hydro, so I'm not going to need the solenoid anymore.