Just thinking if you are after a pro tourer purchase the spec r R1 and buy your son the Spec R S1 by reading the thread about the chassis am thinking of getting one myself
The S1 being the low end version with the bare essentials and by the looks comes with what you need.
The R1 is the top end version, should be good for yourself.
The parts are mostly shared between the two, You can purchase it from www.rcmart.com
But if your mind is set on the new Serpent its up to you, just my two cents.
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