One fact that does not appear in the query: Where does the prospective
telescope-user live and plan on using his telescope?
I would give different telescope-choice answers for
a) Lives in the city
b) Lives under dark skies
and I have some discussion about telescope choice at
http://www.robertmartinayers.org/choosing-a-telescope.html
where I also note the benefits of "try before you buy", eg at a group
star-party.
Bob Ayers (age 77)
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