I wish they could be repaired like all other 'pre'constructed ruins you find in the world?? I didn't have the black forge up to repair the nice round Dvergr doors and when I finally got one installed[after it was quickly destroyed by a Soldier] I don't seem to be able to 'repair' any wooden construction in the Mistlands. Not the Stake Walls you can build nor the interior bracing?? None of which are in the build menu, bracing or nice round hobbit door wise...???