info from the bindings panel is set on a site by site basis.
it is stored in the configuration/sitecache files.
I'm not sure i understand your work flow, why create a seperate DW site for the remote? Why not set the remote tab of the site definition to connect to the remote server?
you shouldn't need to make changes to the site once the files are uploaded to the remote host.
the only thing that should be different on the remote host is the database connection information. for this, you just need to update the connection file, then upload it, and change the connection file back to using the local connection details.