How many kids? How big is the dog? Look at the Adventurer 910FBS floorplan. We have us and 2 dogs in ours with plenty of room. Our unit fits our dually with weight to spare. We had a 3500 SRW before, but without a lot of $$ and mods, it wouldn't (for us) safely haul a larger unit with a slide.
We have no mods on ours and we tow a 18 ft boat that's fairly heavy.
Yes, folks are over. Just be concerned with your comfort level and find the unit that fits your lifestyle. Your dually opens you up to so many more spacious TCs.
We see strange things all the time. We just shake our heads and keep out of their way "just in case". Just last week we saw a med sized SUV towing a 30+ ft TT. Talk about scary!