new tc owner...soon

Try this -> brochure

manual

Since you haven't seen it, Look it over very good, looking for any water damage and delamination.
Around here, when I was looking every Fleetwood camper I looked at had issues, so check it over closely.
Also I would (just seat of the pants) say that camper will be a big load for your truck. Check your numbers closely, for me being overloaded is not fun.

Me too.

I say it's too big for your truck. I owned a 2003 Fleetwood 11x which is the side entry model with NO SLIDE. It weighed a little over 4,000 pounds loaded for a trip. I carried it on a 2007 Chevy 3500 SRW first. The truck's GVWR was 9,900; with the camper on and my wife and dog in the cab we weighed about 11,100. I then started carrying it on a 2005 Chevy dually. That truck's GVWR was 11,400, with the camper on and my family in the cab it weighed about 13,000 pounds. I used both trucks to travel thousands of miles thru many states with no issues. I had air bags and heavy duty shocks on both trucks.
Your camper will likely be heavier with the slide and your truck is only a 2500.
As for specs, my camper had a 33 gallon fresh water tank, the gray and black tanks were both around 30 gallons. Had a 6 gallon water heater and 2 20 pound LP tanks. It only had room for 1 group 24 battery. I really like that camper. I used it for 9 years and sold it for 95% of what I bought it for.

Impossible to determine without your truck’s payload max.