No, not really, and this is really a case of a tool not being a good fit for what you are trying to do.
Read up in the Archive and Upload Manager for details on how to retrieve the file from one client.
Then on the Server you can move the file from UploadManagerData to wwwrootbes/uploads.
Then you can create a task to download the file from there to download it to the second machine.
A poor solution to the problem, and probably violates the intent of those firewall rules you mentioned earlier. You really need a file transfer mechanism outside of BigFix to do this effectively.