Hi God’s Pet Monkey,
I agree with most of your advice with the exception of saying you need a big long scope to image galaxies
I started with a 6” f6 newt ( focal length 900mm ) on a HEQ5 mount and can image many galaxies without an issue.
See attached images
A 6” f6 newt is not a big long scope, it only weighs 6.5kg and is 870mm long
The only prerequisite you need is good polar alignment , good collimation ,focus and plenty of 3 to 4 minute exposures
I have progressed to an 8” f5 newt on an EQ6-R mount after 3 years but still use the 6” occasionally
By the way I still class myself as a beginner ( a late stater at nearly 60 years old )
Cheers
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