All of this will cost lots of money to get started. The value returned on this investment is the creation of the extended enterprise for whatever enterprise is envisioned at any given point in time. The funding model for this work may actually be more challenging than the actual implementation of a business quality network within the Internet. The certification fees and security registry fees can be used to offset some costs, but they cannot be expected to foot the bill fully. Note that security registry fees amount to network membership fees.
Government funding has a place for any research efforts needed.
The most noteworthy effort is the developm ent of meaningful metrics for a service provider. For the most part, we should not look to any government for funding help any more. If we want to run it ourselves, we need to f und it ourselves. So do some soul searching. If you're interested in really creating an extended enterprise, it's time to roll up your sleeves and get in there.