Hull Identification number -location?

[Skeeter15]

Hello to all. Thank you for the wealth of information you provide for Seacraft owners. I hope to own a Seacraft in the near future. I am looking at a 1983 23 Seacraft and cannot locate the HID#. The HID is not on the transom. The transom was closed and hermco bracket installed years ago. The vin could have been taken off during this process. Is there another location I can possibly find it? Any help is appreciated. Thank you.