Cisco VPN setup

The project is as follows: Need to add the VPN module to an existing production Cisco 881. This will be used with the cisco VPN client, also for ipad vpn connection. License for VPN module already included with router. Router can not go down, other than for reload. Work will be undertaken via Teamviewer to machine connected to console. Advise how many hours estimated for work and fixed price for project. Milestones will be 10% on award 90% on completion of testing. Please do not bother bidding if this is not acceptable to you.