FM Server

I am working for a client that needs this integrated into a current solution.
Before I start this integration I need to know a couple of things..
I will precursor this with. The solution they are using is a single file. That has 30000 Records in the contact table.
They are billed for each live database on the server that is to be expected.
I am trying to see if any of the files can be kept on a local directory with there Log in file that connects them to the server so as not to create a costs for hosting files that I can point FM to locally.
Before I start this integration I need to know a couple of things..
I will precursor this with. The solution they are using is a single file. That has 30000 Records in the contact table.
They are billed for each live database on the server that is to be expected.
I am trying to see if any of the files can be kept on a local directory with there Log in file that connects them to the server so as not to create a costs for hosting files that I can point FM to locally.