Publishing client resources and collaborating them to farm

We have a requirement from one of our client asking to provide access to the resources ( share drives, internal URL ) which are not part of vworkspace farm. Farm and the client resources are on different network . We do understand that traditional solution for these kind of issues it to publish the internal resources on the web or have a secure channel network access. However , I was just wondering can we publish these applications outside in a secure way using quest tools and collaborate them with external farm .

Just a thought and wanted to discuss here.

Regards