I agree with the comments about creating a Unix virtual machine to use as your test bed. Even after (if?) you get your Windows test bed set up, you may have to (re)write some of the code to work on both platforms. That could be a project in and of itself. If getting the code to work in both Windows and *nix is your goal, go for it. I think you're asking for headaches you don't need if that's not your goal.

I have several virtual machines that I spin up, pause, clone, and delete as needed for testing. Having a separate machine for a test environment isn't always needed, either, depending on what you're testing. You can create a virtual host on your Unix site and create a copy of your code there (or use version control) to try out your new code or other things.