Greetings,
I'm unfamiliar with your trailer/brand but wanted to share my wife's and my experience insulating our van conversion from bare metal to cozy : )
We sprayed 3M 77 glue on bare metal walls of the van and multiple layers of 1/4" bubble foil :
And here it is now with soft walls covered with marine headliner material.
Total cost for the glue, insulation, and marine headliner for the ~10 foot x 6 foot x 6 foot inside was (without getting out my receipts) in the neighborhood of $300 to $400. BUT let me tell you, i'm married to a McGirlver, and i'm a bit of a McGyver...And doing that interior was a PITArse !!! We would never do it again. And paying Van Specialties (the peeps that put the roof on) the $4,000-$5,000 for the interior upfit seemed pretty reasonable!..if we were to ever buy new again.
You can buy the
bubble foil at your neighborhood Lowes or online.
And here is a link to the
72" Marine Hulliner in "Sand Beige" that we used in the van, and that happens to be the same product used in the
Parkliner.
Best wishes on the remodel.
Thom