We are on spring water here, so no water rates, but any problems we have to sort out ourselves, can get a bit low in a long dry summer, only got too low to use once in 30 years, but we took the opportunity to clean the brick tank out and build sides up a bit. We have another spring which we had already built a holding tank, so plenty of water.
I love alpacas as well, been tempted but i think prices are still a bit high for me, will stick with my goats for now.
House sounds a nightmare to sort, but sounds like it will be worth it, other people's bodged jobs are the worst, I have a friend who had to rewire all their house when they moved in, wasn't safe.