nice write pharian and welcome!
I too would suggest an 8 or 10" newt. RC are mostly used for long focal length photography (and then you would probably need an OAG).
My view is you are better off with the newt, they are easier to polar align and guide due to the short focal length and once you have the knack and are photographing a smaller target it's easier to increase the f ratio with a barlow than reduce it with a reducer (which is what you are proposing with RC/reducer). Plus the money saved from a newt / RC can go to a moonlite focuser.
All the best
Russ
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