Sorry I missed the discussions, have been busy in areas other than astronomical!
The silica gel can be placed into an old film cannister (remember them? you know - film) after you've drilled a few holes in the bottom of the cannister and then slide it into the focuser and lock it up. You can also place some of the smaller bags onto the inside of the front dust cap with velcro so that it just misses the corrector plate. You would have to be fastidious about baking out the moisture every couple of weeks though.
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