You can try the batteries, change it into lipo batteries!
Nope. Not at all.
Here is a rough list:
-Crystal Focus (comes with an SD card) although you need to do some research on how to get one, etc.
-Batteries: I recommend high quality cells. I use (2) AW 14500's wired in series to make a 7.4v pack
-Recharge port & Kill Pin
-There are MANY motors out there. Do some research and find what one works best for you.
-Wire (26 to 28 gauge) heatshrink
Basically, due to the nature of this site, I can not link you to other saber related stores. Just do some research on the other sites, ask questions there, and LEARN (that is how I did).
Good luck!