A note on the Savox servos: Expensive, and they suck a ton of current. Some people have had to run external BECs with them because the ESC's BEC can't handle it. Makes the ESC freak out. My LHS won't even carry them.
And when talking about Ofna, I think "kit" usually means "80% roller". At least that is how my Hyper 10TT was listed.