I take it you mean a 'mortared' rubble wall???

I don't think I'll have a water issue. Its mostly rock which drains well and is located at the highest point of the site. Looking west there is a very steep drop to the valley some 100+ feet below. Plus, there will be an 8-10 foot overhang beyond the wall for the wrap around porch.

I got the backhoe running today and started trenching the drain channel to the edge of the cliff. I must have run it low on fuel on the slope.

We watched a beautiful sunset across the valley after spending most of the day measuring and laying out the site trying to save as many trees as possible.

I'm liking the ceosote pole idea the more I think about it. It would be no problem to extend the poles up to the roofline of the structure. Should be pretty stout with the base cemented four feet into rock down eight below grade.