1988 Dodge w-100 pickup fuel tank modular information on finding and installing?

I cannot locate a fuel pump (fuel tank) modular for a 1988 dodge w-100 pickup anywhere at this point. The pump is available and the fuel level sensing unit also.|||check this web site out they should have those ,they are little hard to come by but i have ordered those through advance auto parts also,they can get one in one day,good luck,,http://www.autopartswarehouse.com/