Outsourcing spooled file

We are at the end of our lease on a printer we have been using for five
years. The spooled files go through iConvert software then into the
Xerox printer.

We bought an HP5550 to handle normal daily work that is in addition to
our desktop printers.

We have asked our purchasing dept to get quotes for outsourcing the
large printing jobs - 30,000+ pages.  We intend to send the spooled file
to the vendor. One vendor says it must be a PDF. That is not an option.
We are moving off the AS/400 in a couple of years so this is just a
temporary solution.

Two questions:
(1) Do you know of a vendor such as Kinkos or Moore that handles print
jobs from a spooled file?
(2) How would I get the spooled file prepared to send  to our server or
via e-mail? 
Don't think a *SAVF would work. Cannot CPYSPLF - advance function
printing.

Thanks for your help.

Fran D.