[wally_bert]

My scope weighs a lot due to weighted base.

I’d like to build some kind motorized mount to point the thing that could live outside. The glass would be stored inside.

[dragnet2]

I have no experience in building clock drive systems for an equatorial mounted scope. I would buy a used one one. But I'm not sure I get the question.

Are you looking for a shelter for the scope?

If you just want to leave the mount/scope outside, look at scope/mount solar covers like the one below.