Dynamic Filter Search on a nopcommerce site

HI there We require a Dynamic Filter Search to be added to our site to allow customer to locate their category. We sell printers and have a lot of categories so a good navigation is vital. there are 3 category types that need to be used Parent Category i.e. Brother Printer Child Category i..e Brother DCP Series Final category i.e. Brother DCP 1200 It should function and look like: [login to view URL] we have a test site set up so we can practice on this before going live. it should function and work well on both desktop and mobile and not slow the site down. please work out your hours and quote your total fee when bidding. we can provide more examples / explanation ie. there is a nopcommerce site doing a similair thing but with only 2 drop downs. [login to view URL]