Hi Chris,
I'm probably the only one here with quite a remote observatory...., it's located 400 miles (~650KM) away from home.
Have to drive from the UK, through France ~ Belgium ~ Netherlands and then to Germany where it's located.
You can see pictures of my system in the following
thread
.
Let me tell that the least of your worries is network speed, there are many physical factors that you must take in consideration first.
My system has no capable remote hands in case something goes wrong. I rely totally on my build and setup.
Don't pay attention to my latest issues, CCD died, alignment gone wrong probably and certainly due to my own mistakes.
You must have reliable sensors, and trust your work.
My system is fairly easy
remote:
Self build automated box (linear actuators, roof position sensors, rain sensor, Indi weather station (DIY)), HEQ5 pro, Atik 314+, QHY5, Megrez 72, Orion mini guider, Shoestring focuser.
Odroid C1 mini computer, 64GB usb memory stick, 2x
Yepkit
Yepkit USB Switchable Hub (allows me to completely turn off the USB ports).
Power supply (beefy one)
HQ:
Mac mini, latest Kstars. That's it.
Going to try to answer your questionsIf you guiding camera allows you, binning 2x2 will help
thread
,
Guiding documentation
You can set Kstars to store the pictures on the client, server or both.
I do not use VNC at all, my remote setup is a server, not a desktop machine with graphical non sense stuff.