Tire and Wheel store

I have an online wheel and tire store in a Joomla 2.5 site with Virtuemart 2.0.6 currently in build/test mode. The amount of tires/wheels is simply overwhelming to think of adding parts 1 by 1. I haven't been too successful getting a .csv file from the tire/wheel manufacturers with all of the attributes needed for a store online (tires- size, features, pictures, treadwear rating, etc.. wheels- size, brand, type, wheel lug patterns, etc..) So, the person who takes this job needs to have experience with online tire stores. I need tires from the top manufacturers and wheels added to the site. (I will provide information on brands/manufacturers we carry) I also need the function of searching by "Brand", "Vehicle", and "Size" for tires and for the wheels I need to be able to search by "Wheel Diameter", "Manufacturer", and "Bolt-Pattern". **** I'm not against going with another software than Virtuemart since I have nothing in the store now. If you have an alternative that is open source that you have "pre-configured" or have access to a tire/wheel database and work with another solution, I'll listen. I just need the software to integrate with Joomla and have a single sign on. Only reply if you have online tire experience with examples of your work. I'd like a seamless transaction that WORKS. I'm not sure how the budget here works. The amount of detail and quality of work you can provide will dictate the budget of this project. I would prefer not to put a budget here until I see what can be offered. Good work deserves compensation so I don't want to sell someone short nor do I want to overpay. So, give me your details and let's talk. We can iron out budget details.