When to build Castle plan?

[FracturedVessel]

Hey guys. Firstly, I want to say well done with the mod. I love how the modding community pulls off stuff like this.
Now, I just acquired the Castle settlement. Went to start the build plan, but it says there are unfinished quests there. I utilized my google-fu to see when it'd be safe to start building there, but I didn't see anything that actually told you when it'd be safe to build. Is there a chain of quests? Or ise there a few seperate quests?
If the former, what would the name of the last quest in the chain be?
If the latter, could someone name all the quests that are tied to the place?
Thanks in advance all.

 

[pek2000]

You should do the artillery quest first, blocking the fallen wall to the north will cause the old woman minuteman pathing issues to get to the point just outside the walls when she takes you out to the place to throw the flare. She will show up with just the bare-bones generator from the "taking Independance" quest. After the artillery quest, you can use any mod that rebuilds the castle.

 

[pek2000]

Forgot her name, Ronnie Shaw.................