i finally pulled the trigger and landed a new spartan off flebay for 360.00.it should be here near the end of the week.what if any upgrades should i do?i will be using mainly 4s for now since that's all the batteries i have and plus it shouldn't break a lot of parts.are there any upgrades i should or need to do right out of the gate?if so what do i need to change part numbers if possible so i can get them ordered while its on its way here.thanks in advance for your help