I came across a used Dry Zex kit for 200$$ It looks like everything is w/it. It has a 20Lb bottle , the lil-purple box and guage and looks like some extra jets and a toggle arming switch. the Bottle looks a lil worn but no dents that i could notice. My friend wants to buy it is 200 pretty damn good??
With the things I listed what other things should be added to the kit.
And whats the less-expensive remote bottle Openers , perg valves , Bottle wormers , Bottle brackets you have found. I was telling my friend w/the 200$$ you bought the kit for you can spend another like what 300$$ for the accessories alone and it would be saving money in the long run. B/c of the cheap price of the kit.

PLease help info is greatly needed.
Thanks ,
Me