Yeah I agree with the others.
It might not be the most fancy buggy out there but the hyper 7 does everything asked of it. It will win club races with ease if you can drive. Its very tough too.
Usually the thing that lets hyper 7s down is that they are sold in enormous quantities as RTRs in which the electrics are poor. This doesn't count in your case. I have that JR radio and it is very good for the money. No crystals needed