When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I don't understand which forum PD thinks your question should be in. Hey PD, help us out! PD is really very nice!
I've never seen the full floor pan carpet available in the aftermarket -- maybe it is somewhere but I tend to doubt it.
It may be a "dealer only" item. Have you checked the various online Lexus parts sellors and asked for a price quote? I'm curious about how much this would cost.