What are the "Big 3"? Last I heard of the Big 3 (USA, Great Britain, and Russia) was WWII. I hope it's not WW3 and I slept through it!
On topic, I reckon you're talking about the battery, alternator, and what else? The battery would be the easiest upgrade. The Contour's alternator is rated at 135A, which is the highest passenger car's OEM alternator. You should never need to upgrade to a higher output alternator unless you're Dean Joyce.
I remember from your install you have a JBL BP1200, which does have a serious current draw, 114A, IIRC. Anyway, either get a cap (or a bigger one, I can't remember if you've got one installed or not) or upgrade your battery to a deep cycle Optima Yellow Top.