Flareman, just ask the boss why the agencies charge for this service. They've spent many years (believe me it does take years, I've been there and done it) to get these situations set up, keep them sweet (no dash.baksh etc) and to maintain a high level of credibility both operationally and financially. That's why the agencies (UV,AR, Jepp etc) can offer you credit down line, not just for permits, but also handling, nav, fuel etc.
It's bloody hard work, and the customer, you has to be credit worthy with the agency.
Lets face it, there are many authorities world wide who ain't going to give you credit as an ad-hoc operator unless you're very well known.
Cheers