Auto Parts Website (1318318)

We are currently looking for a new SEO friendly website to be created. Something along the lines of [login to view URL] Preferably PHP & Mysql driven. This site will find the parts for a vehicle once a user has entered the car liscense plate. They can also find the part they need by drilling into the appropriate parts categories of course. So to sum up here is what we need. 1. User enters the cars liscence plate. (This finds the car make and model from a xml feed from a dva feed in UK & Ireland) or user can select car from pre-populated dropdown lists. 2. User is presented with the different parts categories for their chosen Car. e.g. Brakes, Oil Filters etc 3. User drills into selected category (I assume parts must be linked to Vehicle model??) and ends up at product page then Checkout. (Checkout must allow for different shipping rules, coupon codes, vouchers etc) 4. Must record all customer details & order details in secure backend. Must also email confirmation emails to us and customer. 5. Payment via 3D secure Payment module for Realex payments which must also be developed. 6. This site must be updated from our onsite mysql database which is updated from our in house stock system every few hours with these values. SKU, Description, Stock Availibility, Selling Price.