All the panels do have a frame around the perimeter. There are not floor joists, wall studs, or roof beams though.
I do wonder though if the extra few pounds would be worth it to add a support beam or two into the roof sections.
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2007/21 TM 3326 (Pride of the Fleet)
2000 2720SL (Rebuild Project)
2002 2619 (Parts TM)
SMARTER THAN GOOGLE!
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