Apples and Oranges. The RS chassis alone starts at $19,000 with basic suspension on it and goes up to over 35k fully optioned with no power train. That truck probably cost someone $175,000+ to have built not including the truck to begin with. Another money looser at the selling price but a bargain if you were thinking of building one for yourself.
https://roadstershop.com/product/193...-frame-options