VIN plate replacement?

Previous 5th wheel had the VIN located on the drivers side near the front. Outfitter doesn't even have a VIN#

Although not required in California, my 1988 Bigfoot TC has a V.I.N. tag on the driverside rear corner of the TC, just above the jack. I don't know if it makes a difference, but the TC was manufactured in Canada.

The VIN number is on the title, I'm mostly interested in proof of ownership (matching the camper to the title)

Elkhorn printed on a vinyl sticker- usualy on left side between door & left tailight on exterior sideing. You 'might' look on inside of cabinet doors. Im unaware on a truck camper any other addtional 'vin' tags, never heard on a truck camper, the frame stamped? Not a vehicle. The number would have been on original paper work. Is the vin or a serial number on the title seller has? Have a aluminum plate stamped at local trophy shop -rivot it to the propane box IF you need it. Otherwise long gone...
To my knowledge Florida does not require a truck camper to be registered or even require title.

The VIN plate won't be the only place that it marked. Usually the frame and at least 1 or 2 other places.

In North Carolina you don't register truck campers - it has no wheels.

first make sure your state even registers Truck Campers before you worry to much. In Calif a truck camper is cargo and has no registration.

The VIN should be on the title. Contact your DMV to learn what to do.