Just looked at it. That thing is a mess. Do yourself a favor. Just get the losi conversion and 2-3 4S batteries. They are not that expensive if you get them from hobbycity. I just ordered 3 hard case 4S 30C lipos from them with express shipping and it will be to my door for around $160.
If you're racing and have a fair amount of time between heats and the main, you could conceivably get by on one 4S lipo, but I'd rather have at least two.