Canyoncreek - I like that you have 55 degree well water as a safety net. If you get a crushing heat wave, you should still be able to safely get your fish through it by supplementing with well water and then aerating your water column.
Heppy - Now you are just making me jealous! Spring fed pond with no aeration required. You should probably make your fish pay rent to live in such nice accommodations.
I am hoping to buy YP from Snipe when I can get the pond going, since his conditions are similar to mine. I figure he might have the YP so well trained that they will also mow the grass around the pond and cut and stack firewood at the cabin.