Looks like I'm the only person so far that's not from Asia! So I guess that's the first reason to pick me for the project, if you're interested in being able to communicate well with the developer. I've created something similar to this a few years back, but obviously a lot less complex. Could I have more information on how the feeds would be obtained? Would it be web scraping (grabbing it from other websites by "crawling" them) or do they submit it to you in some way or with an API? Neither is an issue, just wondering. The capacity of being able to have 50,000 listings is not a problem. I also own a server company actually, so with my pricing, I'll offer you hosting for your website for free on one of our servers or even on a large server by itself, for a year, or you can pick whatever provider you prefer and I'd still set everything up and make sure it's secure as well. I also took a look at your example, and I honestly think we can do it even better than that. I do already have some ideas that would make users attracted to using your website, such as having Google Maps integration! It would really help the user interactively browse the neighborhood they select. Of course, we'd have to be able to pin-point the location but I'm sure the information you receive will include an address, and that's all we need. Contact me to give me for information or if you have any questions at all. Cheers!
By the way: if price is an issue, we can negotiate once I receive more details