Lance truck camper for F350

We have a 2008 Ford F350 Diesel single axle 8' box and we are looking at a 1994 880 Lance camper. I need some advice, I have never had a pickup camper so I need some help. The F350 list GVWR @ 11,500, front 6,000 & rear axle 7000. The tires are rated E with max load of 3640 with single axle. Tires are Continental LT 275 / 70 R18. The camper specs are as follows.Length 10'9" Width 93" Height(Interior) 6' 6 1/2" Fresh Water Tank 33 gallons Gray Water tank 19 gallons Black Water tank 22 gallons LPG Tanks(No./Gal) 2/5 Extended Cabover Dry Weight 2,730 lbs. Length Overall 18'10" Center of Gravity 52". So how am I for load weight and I do not understand the center of gravity, is that measured from the front of the box or from the tailgate? Would I have to bag the truck? Thank you