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To make it physically shorter and keep the load nearer to the main 'scope body, the only suggestion I can think of is to insert a 2" star diagonal.
Here is a photo of my CCD on the WO 66, but using a 1 ¼ inch diagonal. A 2” will give you a longer path so you should be able to wind the focuser in further to reduce the leverage.
Warning: Don’t go out and specially buy a quality 2” diagonal until you have done a test run on a borrowed one – it may not work!
Cheers
Dennis
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