The good news: that theme is really easy to throw together in photoshop. The bad news: Unless you already have your own imagery or are willing to pay for stock photos you are grossly underpricing this project. That's why only 1 person has expressed interest in the comments section. Granted maybe more people have noted you but those objects in the background have to be found and photographed.
As per your given details we are very much interested to work on this project. We have seen given URL and very much able to reach your desired level. Pricing ($100) would be fine only for word press theme design. If you offer extra task like site development then will be added charge as per requirement. We can also provide you SEO task and maintenance work after completing main website. This is our portfolio [link] and also few samples link: [link] [link] [link] [link] [link] (Flash Banner)