I'm all about leveraging the experience of those who have done it. I don't have the money and especially don't have the time to be juggling parts around. For example changing a cam out from a flat tappet hydraulic setup and upgrading to a solid roller setup is something I want to do before the engine is in the car. And I for sure don't want to have to drop the transmission to swap a torque converter if I don't have to. Better to get the stuff done up front.
I don't have a need to experiment. All this stuff has been done before and I have nothing to prove. I just want a very fast car and I'm okay with following an established recipe to get there.