This doesn't look like a bad buy to the untrained eye. Not sure what the metal frame is on the ceiling though? Hopefully David T. will be along shortly to give his expertise - unless he is out buying it!
13' Trillium
Sleeps 2 adults and 2 children
2 burner stove
No leaks fridge & water pump not working
Cushions in great shape - recovered a few years ago Tires in good shape
Lots of storage
Selling because I've upgraded to a motor home
$2500 OBO