I went with these watering cups. They do a good job at keeping things dry and the animals with a constant supply of fresh water. They can be disassembled and the O-rings can be replaced if needed. One word of caution, if you have hard water put a sediment filter in line with your system to prevent the cups from becoming clogged, happened to me once.
Also, these cups aren’t supposed to “fill up” and the birds will never “learn” to hit the yellow doohickey to add more water to the cup. Instead the bird will try to get the last bit of water out of the cup, and accidentally hit the doohickey, causing more water to enter the cup. At first I thought the birds were too stupid to figure it out and I didn’t think they would work. Turns out they work, just not in the way I had thought.
Quail need at least 12-14 hours of light a day to lay eggs. Not much light is needed. One 15 watt compact florescent bulb in my garage provides more than enough to keep them laying.