Not going to read the whole thread and do not recall if responded before but for the power you want, DHM is the way to go.
I did a CX racing IC, bumper beam notch for more air flow to the rest of the coolers....then found out about and did the J-Line, and then ordered the first DHM and wish I had been able to before doing the others.
I actually bought a Cobb after the J-Line to save some weight as my car was to nose heavy but got offered to do the first DHM bumper/IC and jumped on it.
The Cobb unit is great for those with less ambitious plans and low in weight for those into making the car handle well, which the DHM is even better at with the weight of the beam and IC.