Alex, perhaps the answer is to simply build another observatory building and put the new gear in there. You have the land, systems, and the experience. Those prefab flat pack observatories are pretty easy to put together. Check out the Greenline observatories being sold by Testar. They seem pretty cost effective for the smaller roll off structures, less than $10k. And by the way check out their roof drive systems, one with ASCOM control.
https://www.testar.com.au/collection...BoCzsAQAvD_BwE