Hi well if all you going to do is just take them out a few times a month you only need 1 thing maybe 2 ..
1 is a 550 traxxas titan to put in 4x4 with the G10
2 might wanna update the M8 to 2.4ghz but the fm will be fine..

you have chargers to charge lipos if you decide but i dont think you do.. fun is fun dont have to drop hundreds in when what you have is fine to bash with