Someone on Reddit made this awesome Google Doc listing out everything that we'll need to fully upgrade the hall. If you ever want to see what in particular we need right away, talk to the Treasury person in the hall.
But if you're curious what we're going to need and how much in the future, check out this Google Doc of Upgrades! (It's a work in progress.) Eventually, I'll color code it or something to show what goes with each type of upgrade (Arena, Workshop, etc.)
Shout out to everyone who has donated anything to the hall! You're all the real MVPs!
**Note: I found a few items that have been left out, so the sheet is not perfect.