Full-timing in truck campers?

I agree with wintersun. Dw and I spent 6 weeks this Past summer in our 11' 3" Lance 990 non slide dry bath model...Yes on a SRW truck.. and although is was fun started to get a little cramped especially with 2 grand kids at times. Another Grandson on the way! We are planning to stay the summer at least 2 months of it next year and longer durations in fall and spring too. Thinking of a big Fifth wheel or a motor home. Figure with my trucks new 19.5 wheels and tires I can haul a good size Fifth wheel. Heck my Father in law hauls a 37 foot keystone Montana Fifth around with a 2005 GMC 2500 stock wheels and only timbrens for last 2 years.