Lamilox 1000

I contacted Hemet Valley RV about buying 40 feet of Filon. I asked if I could get it pre-cut as I need sheets that are 66 wide, not 103 inches they sell. They said they don't cut to width, just lengths. I got a quote of $25.50 a linear foot. I would like to do my Teardrop in two side pieces, 15 foot long and a 16 foot piece for the roof/hatch. My question is, it the price good? Or is there another sourse in SoCal?
Thanks for any answers given.
John
Thanks for any answers given.

John