Fuel Tank Delete???

[sodly]

Has anyone ever heard of a "fuel tank delete" option for camper trucks? I just heard of this on Fords but don't know if it's legit. My 66 Custom Camper did not have a gas tank behind the seat but has two saddle tanks installed instead. I always presumed that the main tank was removed by the owner but I just wondered if there was such a thing as ordering a truck without a fuel tank. Anyone ever heard of this?

Here's the truck that got me wondering about this possibility: http://cgi.ebay.com/ebaymotors/ws/eB...#ht_500wt_1182