Hi,
You reference bootstrap in you project description. Are you referencing the Twitter Bootstrap library/framework? or just generally bootstrapping websites? I've designed sites off of Twitter bootstrap, as well as custom-built the front end with my own CSS. Take a look at my profile portfolio for examples of clean, responsive design I've put together - I have other reference projects as well I'm happy to share. I'm bidding $200 because you don't clarify how big or complex your initial site/project is, so it's difficult to scope the time required to do the front-end.
best,
Chris