List of modules is available here on forums and I have already provided link where you can find it. Regarding templates, CMS comes with one fully responsive and highly customizable template. In case you don't like it, you can order custom template.
In case you want to buy with USD, we can discuss in private, I can send you payment request in USD so it's not a problem.
Actually, it's possible that website will run correctly also on IIS, but I have not tested it. In case you want to try out and you will face any issues, I will be here for you and provide you support and fix your issues.