Once you establish your time, and the images on the contact is similar then you do not need to do test strips, If you are light or dark by a bit its no big drama.
the idea is to just print... free yourself Willy.

Home depot makes the under the sink plastic holders to hold prints.. but I feel your pain with no water in the darkroom now that is tough.

But my last workshop in California showed me something I have never seen, out side drying of prints on screen , depending on the day the prints dried in front of my eyes
it was fun..