I have bought a second hand Xray T2 009 and T3 12 with indoor use only and they looked like new. They are still running original wishbones hubs ect with the exception of the front right steering knuckle on both cars
all my fault.
You should be ably to pick up a T4 or even T4 14 in like new condition.
The other to look at as good new value is the DETC410 not sure of release date yet but it is all the best bits of a TRF417, T4, ARC R10 and BD7 on 1 chassis for about £320