Greetings,
When providing estimations based on an example of a similar product, there is always some risk of misunderstanding, because the buyer and the developer see the same features from different points of view. This means that the developer could probably omit some functionality as unimportant, what the buyer could probably see as a very important feature.
This is why we would like you to provide us with an exact list of functionality you need to have in your project, even if you have an example that is very close to what you are planning to achieve.
A life-time Bug-free warranty for this project is included in the offer.
Considering the above we would like you to pay attention to our portfolio at: http://www.freelancer.com/u/devexpertsteam.html
Unfortunately, Freelancer.com does not allow freelancers saying their contact details "loud" here, including our personal company website. :). It could cost us our account. However, Google has helped many our customers in similar cases. ;)
We would be glad to answer your questions and provide required assistance.
Best Regards,
Your DevExperts Team