Probably no-one used those..
But I can see NO reason why they shouldn't work in principle.
The drawback could be they are not specifically designed for telescope, so perhaps you will find some position limitations..
Also, you will need two of them... and lots of details to fit the scope/ camera.. at the end of the day the cost effectiveness may be questionable.
So, IMO second hand EQ may be better suited for your/our purpose :-)
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