Craigslist RSS reader for autos

I'm looking for bids to create an rss reader engine that pulls data from craigslist auto ads nationwide (to aggregate results into one listing). I will provide the design and css coding. I'm only looking for contracting with someone to provide the rss/php scripts to load the data. The site that most resembles what I am trying to achieve is [login to view URL] Site will need to have the ability to search by make, model, type, years, proximity and price. Proximity search should be in increments of 100 miles up to 1000, then ALL. Make and model pulldowns should be interactive to pull appropriate model by make selected. I prefer that PHP be used as the scripting engine. You can use Rails as well. Needs to be fast and scale under load. ## Deliverables I'm flexible on who installs what, whether its done on live server or your dev box and what not. I'm mainly just interested in getting a data engine that can pull the same data as you see on [login to view URL] for autos, with a few expansions in terms of search parameters as well as the ability to allow users to get notified via email alerts. I've been a web designer for several years so I'm capable of handling the css and xhtml layout. The site capabilities will grow over time. This is a phase 1 deliverable to get the site up and functioning. I will be responsible for all design. Please do not use tables in your return markup. All markup will be in xhtml with presentational elements in css (I will code css).