You want a great graduation party in the backyard, and the food truck is the anchor that makes it work. But the good trucks book up fast, long before the caps and gowns even arrive. Lead-time is your real lever here, since waiting too long means you miss out or pay rush rates.
We are looking at about $1200 for the truck catering. If you map that out against your timeline, you can lock in your date early and keep your cash flow steady instead of scrambling all at once.
That intro window is a firm deadline, not free money. If you still have a balance left when the 18 months are up, regular interest kicks in on what is left over.