Hi Carly,
I think you will be better off with keeping your ED80, and only getting a new camera with integrated wheel and OAG - something like Atik One. It is under $5k and filters can be gradually acquired. Having a camera, wheel and OAG in one box makes things easier and it eliminates a few potential gremlins.
F11 is very slow for astrophotography and thus more challenging to use; I would not recommend such telescope for astrophotography, unless you are after planetary imaging or like challenges
