Lightning stadium basher setup please help

ya its an 1/8th scale i am doing alot of reading and finding out real quick what will and wont work so 7l is out and now i am looking 9l or 6xl its amazing what a few mins of reading will get u i have also decided to scrap the 8.4v battery setup and go to a 12v setup just means instead of having 3 packs i will have 2

maybe if i give some info about my exact plans it might help first and foremost my truck is a basher that being said i run hard all winter and for that plan on running a revolver 650 with a waterproof esc and all the goodies that go along with being waterproof, but sincei am making it electric might as well have a brushless setup for the summer as well. I am limited by my charger to 10 cell packs nimh and am buying 24 tenergy 4500 mah cells not the best cells but a risk i am willing to take I know they will be fine for the brushed setup. In all honesty i care less about the brushless setup than i do about getting the brushed, brushless is jsut a bonus for summer and other than the motor i really dont want to spend much cash

hopefully this helps in advice but I am also hoping iam learning and that the 9L or 6xl is good choice lol guess i cant have it both ways