At 200mg/cap, I would go with the "0" complete kit. The kit comes with a quick cap & tamper + 1000 colored caps; all for only 18.99!
Complete Capping Kit ("0") By NutraPlanet
Depending on the powder, the "0" caps can hold between 408 - 816 mg.
Otherwise, do carry this kit in the "00' size as well!
Complete Capping Kit ("00") By NutraPlanet
Also, for all anyone who hates doing a little math, we do carry convenient pocket scales (they make things a heck of a lot easier)!
Pocket Scale ES Series (0.01 g) By NutraPlanet