Stenten's offers several light kits. I think I can safely assume (considering its popularity) that this is the kit you would like to install (Pics are from an old build I did):
You can use any switch you would like. Most all of the aftermarket companies provide a nice $.05 toggle switch/pull out switch. The switch does not have to be grounded, so you can put it anywhere you like and pick what ever type you would like.
Have a great one,
Bob