One additional thought about A/C. Some people when building and planning on A/C, desire massive amounts of airflow where the quantity is more important than the temperature, hence the double blower “Aussie” option.
Personally, I prefer the softer blow with colder air and here’s why.
Even with the single blower on high, the force of the air is high enough to break squelch on your intercom and create white noise in your headset by blowing on the headset mic, especially with four headset users in the airplane. It does get annoying after a bit requiring turning the fan down to mitigate. I have the Aerosport overhead with the Boeing style vents from Stein. Bill’s original overhead with the large minivan vents would be different.
RV-10 BPE, Dynon, Airflow systems A/C
First flight May 10, 2014