Good to know it can hold up to the water. I've found quite a bit of old barbed wire on the property and will reuse all of it for sure. Still experimenting with lime plaster / top coating. I know the type S lime isn't perfect, but it's what I have, and seems to be an excellent drying agent.
I suppose I'll probably use metal roofing, but other low-cost options still on the table.
I picked up a bunch of free, unwanted slate tile in Phoenix, so I'll probably use at least some of that for a floor/backsplash. I like that it's very natural in appearance without any coating. Let me know if you'd like any.
And may the monsoon rain upon you!!