ooops, should've said EXTERNAL controller as that is what I assumed the op was referring to, sorry.
The totally unnecessary additional expenditure alone would rule it out for me considering the description of the op's requirements.
But hey, some just have to have the latest and greatest, weather they actually need it or not.
I've no problem with that.
I had 800 HP in a 67 Chevy II once.
It pulled the hills nicely.