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Sure you can insert focal reducers, or use huge eyepieces, but ultimately the field of view in a small Mak like yours is limited by the diameter of the hole in the back.
Nothing you do with eyepieces or reducers will change that fact.
If you want to go lower its better to buy a small 80mm refractor around f/7 that will give a really low power and still fil a wide field eyepiece.
Some years ago I bought a 102mm ed f/7 refractor to complement my f/15 Mak.
The lowest power on my Mak is 54X with a 2" 50mm eyepiece, the lowest useable power on the refractor is 102/6 mm = 17X, which corresponds to a 42mm eyepiece (a 2" vixen LVW 42, massive thing).
While it seemed like a good idea at the time as the focal length is 1/4 that of the Mak, these days the refractor doesn't get much use.
Ill suggest you really think carefully why you really want this; you might find it isn't much use.
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