Hi Alvin, it's ok, I don't mind answering detailed questions.
Yes, we are talking about client0, client1, ...clientN. Technically, to publish VMmark results (meaning you submit the results to the VMmark Review Panel for publication on VMmark.com), you must configure all VMs as specified in the VMmark Benchmarking Guide, so the client disk should be 32GB.
If you are not planning to submit results to the VMmark Review Panel, you can size the client VM as needed.
You should be able to install all packages in Cygwin on the client, if you do not install all of the Windows updates. Please let me know if this is not the case.
Correct, if you are using a physical server as client, then the disk size can be any size you wish.
Yes, you can disable the firewall. Of course you should only do this if you are using a private subnet.
Yes, please follow instructions in the VMmark Benchmarking Guide under "Configure STAF to start automatically".
Thanks,
Rebecca