A great grazing table makes a party, but weekend dates for good caterers book up months in advance. If you wait until a few weeks before your event, you will likely be stuck buying grocery store platters and assembling them yourself at midnight.
A typical setup costs around $750. Securing your date early usually means paying a deposit upfront, but you do not need to take a massive hit to your checking account all at once if you plan the payments out.
Remember that a 0% intro period is a temporary deadline, not free money. Pay off the balance within the 18 months, or regular interest rates will kick in on whatever amount you have left over.