You are way low. Figure more like $70-90 per hour for labor (fully loaded) by time you add in the normal government overhead for contracting. If, assuming the native agency that manages the connectivity to the office agrees, you need to budget for a firewall. And a good 40 hours of security configuration and documentation (something in govt called "C&A") at $100+ an hour. Then there are quarterly scans, and re-certification of the security documents (at least every two years). Most the local agencies won't be interested in allowing anonymous users on their network, even if it is in a firewall zone, or risk their bandwidth being consumed by some free loader, so most of these installs will require dedicated connectivity. And then figure O&M. Who is going to fix this when the hardware breaks, is unplugged, or turned off? Either the locals or your contractors who will need to travel? Who patching the firewalls, the routers? Where is the funding for hardware replacement in 3-5 years?