I own a 02 Chevy Extended cab 4x4 with the Z-71 package. It has a 5.3 V-8. I would like to know a round a bout size of bumper hitch camper I could tow. The specs say 7500 towing capacity. I am sure this means empty. I have also been told the Z-71 package will increase the amount of weight my truck can handle. I want a camper that sleeps 6. Through the grapevine I have been told dont go any bigger than a 26 foot camper. Does such an animal exist or do I have to get a bigger horse to pull what I want?