If you'd be happy with 6" f8, I'd lean more towards a 6" SCT, with a reducer this is only f6.3, should hold collimation quite well, and is sealed against dust. Light weight too!
Then just a short tripod and you could use it sitting on the ground. No need for gotos... A nice alt az tripod head would be good though if they aren't too heavy. Or if you're keen you could build a dob style mount for the SCT.
What do you think? If you wanted bigger a 7" Mak would be cool or if size is less of an issue an 8" SCT would give wonderful views.
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