You could sleep in the second row seat on top of all of your clothes as your bed. At night you could cover the second row windows. Bathroom could be a container under the second seat. Storage is in the back. If you sleep in the bed, the only negative may be coming out in the AM. No one>>>>>>>>>>>>>>!!! would know you were there!-Sweet!
If you could live small,
or store stuff for the off-season at someone's house,
or put a roof top rack/carrier, you could do it and store it all!
GREAT truck. Great reliability. Great re-sale value. Off-road here you come!