Ruby on Rails Classified auto parts website

Project Description:
I need a website developed where you can list auto parts for sale. The website will function similar to craigslist where members can list different auto parts for sale. There will not be any actual purchases done on the website, it's more of a classified auto parts website.

Some of the features needed are:

*ability to list auto parts and tires
*add parts to your watchlist
*ajax filter similar to the one on the left of this page http://www.ebay.com/sch/i.html?_trksid=p5197.m570.l1313&_nkw=jeep+alternator&_sacat=0
*upload pictures of the items along with description
*filter parts by year, make and model
*ability to save to favorites
*a place for google ads
*ability to manage everything from admin section
*very secure

I want this developed in ruby on rails 3.2+. I already have the design completed in html/css with Twitter Bootstrap so you must be familiar with Twitter bootstrap.

I want to use Active Admin (http://activeadmin.info/) as the gem for the admin section of the website. This gem will build my admin section based off of the models you setup which saves time.

I would like to use ajax for all of the forms and results on the website. Please show some of your Ruby on Rails work via pm.

If this goes well, I may have other work for you.