Ya what Roberta posted looks good. You just put a Y on the hose bib with the timer on one side (so you can still use the hose for other stuff. Then just run a hose to the misting system.
There should be no real difference in pressure from a professional valve system. They all go to the same water line so it should work fine. Since you don't freeze where you are (right?) You just need to protect all the plastics from the sun and they should be just fine.
Mistking
Looking for a misting system? Look no further. Automated misting systems from MistKing are used by multitude of plant enthusiasts and are perfect for Orchids. Systems feature run dry pumps, ZipDrip valve, adjustable black nozzles, per second control! Automatically mist one growing shelf or a greenhouse full of Orchids.