Personally I just went for the top end since radio is something you're not gonna wear out or find it becoming outdated too quick, and got myself a second hand helios, also slightly advantaged by the fact i use steerwheels, they're far cheaper second due to a lack of demand, a helios with receiver is less second hand then just the receiver new!
I assumed the motor should be ok since it's new but it might be worth a look.
