Hi David
Good choice on the 12" goto, I have one and it is great. The one thing to consider is its physical size if you are going down the solid tube path. It is a big telescope and not that easy to manoeuvre if you are on the short side. I'm 195cm and can lift my ota by having a hand in the bottom and the one in the top, OTA separate from the base of course. You would need a trolley of some sort to move them as a complete unit unless you are built like a 30 year old Arnie
.
Wayne