IsolationRide,
That is a hefty amount of CCA. That figure will only come into the equation as you start, or try to start your engine. It allows you to crank for 30 seconds at 0° and not drop below 7.5 volts (I think).
If your engine doesn't start after this ordeal, you have serious problems elsewhere.
The CCA won't figure into the "bells & whistles" formula as much as the rated output of your alternator. With lots of goodies on board, you will want a high output charging system.
Stuart