Chris do you think it would be a better idea to get just the combo, replace the board with the one from the new tank, and then upgrade the electrics in the newer one? I don't know if the wife would go for that since I would need a 4-7 channel radio, 2 esc's, a controller etc. But I am thinking in the end I would have a much better tank that would be more reliable, and they could play with the other 2 tanks....Just throwing ideas around.