We're in our 60's also and are in the process of downsizing from a 30' (total length) Sunline TT to a smaller and much lighter Winnebago Minnie Winnie 2201DS. We picked the 2201DS due to it's size (26'9" total length), great storage space for longer trips, low weight -7620 GVWR and they seem to be a better quality unit than most. We pick it up next week, so I can't say whether the gas mileage will be better than the 8-9 that we get with our Tundra, but I suggest that you will need a TV that can handle around 8,000 lbs. unless you want to buy a really small trailer or move to a hybrid. I'm hoping to be around 6,500 lbs. loaded with the Minnie, versus around 8,000 lbs. or so that we were towing with the Sunline. Check out the Winnebago towables at http://winnebagotowables.com/minnie-floorplans
