Last year Fleetwood made truck campers was 03. I think they had a big bonfire and burnt all manuals, sales literature and pretty much disavow any knowledge of ever having built them.
That said the 'manuals' for the Fleetwood truck camper contained very little specific information to the camper itself, they were very generic, how tos included with all models and virtually worthless other than a general how to use a self contained rv. The sales literature/brochures contain more information as to size of tanks, etc, features & options of your specific model.
The model is Caribou along with the size, as with many, defined by the floor length. Weight if listed would have been for unit built without any options. A public scale is the only way to get an reasonably accurate weight. Cant tell by the picture but it 'looks' like an 11'.