Well depending on what he wants to do with it...
if he is looking to just fart around in a parking lot or shelf it and just talk about it, then yes build away!
But if your looking to run with the guys at the track I go to watch, you need a person that knows how to build these professionally, including the motor and drive train set up.
alot of people like alot of diffrent things don't get me wrongOh sure i'm not saying he can't build it, but not everyone has the time nor the experience to do it themselves.
Im not a fan of the turbine motors, they just don't have the same type of power off the line, I'd rather see your dragster go with that pocket bike motor, that would be more impressive I think.