to answer question 6, yes they still make those batteries. there are many kinds, some very cheap such as these http://www.hobbycity.com/hobbycity/s...idProduct=8357 and some about 5 times that price. i know that all the brushless systems will work with 7.4 lipos, but im not so sure if they'll work with 11.1 i think ROAR limits to 7.2 but i may be mistaken. try looking on the nvak website pr downlading a manual for the brushless systems if you dont already have them.