i think you'll need to post pics of the problem area.
hybrids since 2003 no longer use poles, but use cable supports to hold the canvas bunk doors up.
i do have to say "WOW"
, to a family of 6 and a dog in a 17' HTT!
that would be too small for just my wife and i, let alone that many bodies.
you'll need to get some Popup Gizmos or the generic 5x7 solar blanket versions and provide air movement, because you'll definitely have condensation issues with that many people in the trailer.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC