I've had a chance to look for the pics I took and I hope they give a better idea of how SCT's go together. The first one is the 'clip' you have to remove from the end of the baffle (3rd photo). The baffle/tube slides out the end and if you look at the middle photo you can just see where the focuser is joined onto the mirror cell through the hole in the back. I didn't attempt it, as I was mainly aiming to remove the baffle to get the thread at the back recut so I could fit an adaptor on it in this case, but I guess the focuser also needs to be detached somehow before the mirror can be completely removed.
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