1. Turtleback Getaway trailer and they start at $28K. Home - Turtleback Trailers - https://turtlebacktrailers.com/
2. Total of 4 (Spouse and 2 kids)
3. Yes, AGM 200 Ah with solar and AC charger, 2K watt inverter.
4. It's huge! We put all our camping gear inside and still has room for a 22 Gallon...