For your pond I don't see why it wouldn't work. With 200 trout catching them out of 4 acres won't be easy, but won't be hard either. It should provide for fairly decent fishing. I like the 100 trout per acre range for put and take fishing to produce faster fishing, but 50 will work. Stick to rainbow trout and if you like you can mix in a few golden morphs for variety.
This will work well, as if what has happened in the past and your whole pond dries up again you're not losing a long term fishery. You can still have your CC, HBG primary fishery for warmer months.
