Will look to go lipo in 2-3 months (hence the relatively cheap charger and batteries) but for now I don't want excessive speed as that will likely equate to excessive damage! Same theory for the brushless setup, I know there are quicker options but I'd prefer something more driveable for the time being and can upgrade later rather than maxing out everything straigth away. That said, you make a very good point on the charger, I will look at getting a better one so the only other cost is lipo batteries/balancer when I make the switch.
Thanks for the advice on the servo, will swap that around