Good luck with your new equipment can’t wait for first light report.
I was thinking somewhat along the same line as your self regarding mount and 80mm Ed scope don’t need a guider as I have a 50mm
finder with a DSI 1 attached and it seems to work fine.
I was looking at the CGEM or EQ6 but the weight is putting me off as I had an Op on my back two years ago so might have to go with HEQ5 pro as I don’t have a permanent set up.
So interested to see how it’s all working out for you.