Questions On Electric Truggy

[Wild YFZ 450]

I was at the track yesterday and after driving my trucks on the track and then a truggy I am hooked, I want a truggy bad.. I want electric though,Since everybody there thinks nitro is the best and we all know it isn't..
So now im thinking of maybe a 8ight running a MMM and a medusa.. Probably a 80 series? Not sure.. Also I was thinking about running 5s.. I have a 3s 5000mah battery and thought a 2s 5000mah could be joined in for a series,for cheap. I have radio gear so thats not a worry.. I do have a budget and was just wondering if all of this can be had for around 450-500, I would like to stay around there.
Just need to be pointed in the right direction.