The Mirada would be shorter and lighter than the Berkshire, CCC may not be listed on a newer MH but if you take the actual weight with all the kids and stuff you take and subtract it from the GVWR(gross vehicle weight rating) if it is near zero you are OK if under zero you are overloaded if a positive number you can add more stuff or more kids. The Ford chassis may have a 22k rating if the actual weight is 20k lbs minus the kids you will have 2000 lbs to play with. Sometimes only UVW(unloaded vehicle weight) is listed there you have to account for all fluids, passengers and stuff to get your actual traveling weight. Usually shorter gas MH's have a good margin of CCC I have seen some with 3000 lbs and some Diesels with less. I would not buy a brand new MH for the first family vacation because you are likely to run into a lot of new MH problems and spend your vacation time at a dealership fixing the problems. Check the fresh water and storage capacities of both the DP probably has more, if you plan on dry camping. I would look at 3 year old gas MH's for a trip this year then compare to a larger DP. Good Luck in your search.
