Lipo 10000mah 5S 18.5V - $299,-
So 600 dollar for 2 LiPo's, thats cheap, compared what a 5000mAh 7,4V LiPo here in the Netherlands costs

"I've found that electrics stay a little cleaner"
Another reason to make a E-Baja! :D I always saw that nitro's/gas cars were dirtier than electrics, but never thought about it, well found! :P