Steve, thanks for sharing your experiences. I have been researching EAA setups and found this very nice article " A Beginner's Guide to Choosing Equipment for EAA", which is posted on the Agena Astro website:
https://agenaastro.com/articles/guid...p-sky-eaa.html
I will likely, now, hold onto my existing scopes for the near future, and put a camera on the Newt for experimentation. The f5 Newt seems to be a good platform for EAA, and the collimation hardly ever needs to be touched.
Camera wise, the 294 seems well regarded, but it is pretty costly and in short supply. If I went with a camera that did not have cooling there are plenty of choices at reasonable cost. I will need to find out how important cooling is in frame stacking.
The ASI Air system looks interesting, as it includes stacking in the app, and can interface to my Android tablet, but I seem to recall threads suggesting it was problematic.