SOLUTION: For anyone in a Windows corporate environment with a firewall (NTLM proxy authenticated) the following will allow you to work with giter8 (and use git://...)
Step 1. Install cntlm:
This will allow curl, wget, etc. to work as normal once you set the HTTP_PROXY environment property.
In case your firewall blocks the git protocol, in addition you'll need...
Step 2. Install socat and configure a gitproxy.cmd script to use it.