How to display products based on the Location that a visitor selected ?

Hi,

I need help in TWO issues. It may be bit lengthier to read. I apologize for such big details. But i need your help. Pls bear with me.

1) I want to have a Location Selector popup at the website startup.. and based on the selection i want to display my products.

There will be a few major cities (say 7-8) in my country where i want to sell my product according to the availability of the product at that city. Few set of products are available in ALL THE CITIES and some are available ONLY IN FEW CITIES. So I want to display the products according to the selection made by the visitor.

Is there any plugin available to have this kind of classification and please recommend your suggestions.

2) My product is a automobile battery and more than 8-10 brands are available in the market. And each brand is manufacturing batteries for every kind of vehicles/ make /model.

(Example: Brand XYZ and Brand ABC will be producing batteries for a CAR / BMW / ECOZEE..)

So i need to allow the visitor to select their vehicle/ make/ model/ and show the suitable brands according to their selection. The search form MAY include their preferred brand/ as well.

How can i setup the products in woocommerce and what plugins would you recommend to accomplish my goal?

The page I need help with: [log in to see the link]