newbie to brushless

[Ron E]

Hello all, I have 2 e-maxx 3905's, I drive one and the other is to bash and let other people drive, mostly my 6 yr old daughter, but also everyone that ask, can I try it? both are loaded with rpm arms, skids, etc... I run nimh batteries and will continue to do so for now, I have several sets, eventualy I will go lipo, but not yet. I want to go brushless with my maxx, but I want a simple set up, just a little more power than stock and longer run times... I have been searching this forum, traxxas and rcu for a while, looks like castle - mamba, novak 6.5 or ez-run??? but what is best for the simple minded basher that wants to use nimh and not break a lot? around 250-300.00 would be ok, more if it's a must. I'll upgrade the trans, axles, etc... as needed. thanks for your help and sorry for the "whats best for me" question.

thanks, Ron E.