Greetings Michael,
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.
We would like to draw your attention to one of our successful projects that has been finished earlier, showing certain points in common with your purposes:
- Accommodations Network: A multilanguage accommodation network, allowing it's users to post their properties, availability dates, place/accept reservations, rate their experience and use private messaging to communicate with other users. Has quite a large set of social features, uses PayPal payment gateway and PayPal MassPay.
You can find this and some other real-estate-related websites in our portfolio at: http://www.freelancer.com/u/devexpertsteam.html
A life-time Bug-free warranty for this project is included in the offer.
We would be glad to answer your questions and provide required assistance.
Best Regards,
Your DevExperts Team