npm gets its config settings from the command line, environment variables, and npmrc files. You can try to specify registry in a npmrc file, and module in the command line.
To change registry, you can use command:
npm config set registry <registry url>
You can also change configs with the help of -- argument. Putting --foo bar on the command line sets the foo configuration parameter to “bar“. So you can try something like that:
npm install http://git.repo.url --registry=https://your.registry.local/