I just cut firewood for my own home, so probably not nearly as experienced as many on the site, however these are my thoughts:
Your 372XP is in my opinion a perfect firewood saw, so that is a good start.
From what I know about your truck, it would be two loads to the cord, which is very inefficient in this high fuel price economy. Also, doesn't sound like the truck has been fitted to be a dump truck, which means that you would have to unload by hand. Very time consuming and tiring.
I assume your 16 Ton splitter has approximately a 15 second cycle time, which also increases the amount of time it would take to process a cord.
I also agree 100% with ericjeeper that you don't want to pay much if anything for your wood.
Just my thoughts, but I would not even contemplate getting into the firewood business with the thought of making any money unless I had a truck that could hold a full cord and that had a dump feature, and also had a splitter that had a 10 second or less cycle time.
Good luck with your venture.