Yes, you can register at the meet. The registration fee is $25 which includes use of the hospitality room (snacks, beverages, and display material to look thru) and a space for vending parts. The meet officially starts on Monday the 29th, however, most folks will arrive on Tuesday. Parts vending happens throughout the week.
When you arrive, look for the signs pointing you to the hospitality room where the hosts will have the registration area set up.
Glad to hear you'll be there!