get a on/on/on switch for sure....
i can't find one in my bitsbox..arghhhhhhhhhhhh....off to the shops tomorrow...if they are open.. 
all other components will be standard stuff...just one more cap ...
Ok i´ll get an on/on/on switch.. i have most of the standard stuff so i hope i have everrything else..
But would be cool to see a wiring diagram on the version 3.. just to have a look what it looks like..

, and hey.. btw, in the version two, isnt it possible to have an ON/ON switch for the VOL 1 bright and VOL 2 darker ? i mean so it could easy be switched between the both modes ? just a thought though..