What kind of shell do I have?

This thing came on the truck when I bought it several years ago, but doesn't have any markings. I'd like to replace a couple parts on it, but can't figure out the model. Anyone familiar with this one?

Thanks in advance!

 

Any markings or tags on the inside?

 

The only thing I've found is a serial number plate on the inside near the rear of the shell on the passenger side. It says it was made in Canada, has a bland passenger warning, and a pretty long serial number.

 

Google canadian shell makers then.

 

K, thanks for that

 

a fiberglass shell.