My latest playthru has my Homebase right next to Haldor. I have mead with him every morning, and yes he drinks a lot of mead for a short dwarf!

Your idea for earthen walls and using his bubble as a doorway works just fine. When a raid occurs, I just shoot arrows down on their heads and get all the resources. I plan to fully enclose his bubble, just to see if it can be done…and to keep him out of my mead supply, I think he’s been taping the barrel late at night. 😝

I’ll post some pics later today. Skal!