Classified Listing RubyOnRails Web Application

Requirements: We need an experienced web developer to complete a classified listing site that helps people buy and sell horses. Project must be done within 30 days. You will: 1) configure the checkout/questionnaire to retrieve the horse information configure activemerchant for payment via paypal 2) configure a search tool to search for horses, with advanced search feature, I anticipate searchlogic for this 3) create an authentication using authlogic 4) configure authorization so we have 1 admin user with super powers. 5) configure backend so customer can edit, pause listing You must know and be experienced with: 1) RubyOnRails (ninja at Ruby) 2) javascript/ajax 3) html/css 4) linux 5) application deployment Payment: I anticipate paying $1,000. 25% upfront to get project started, 25% payment sent when half of project is completed and remaining 50% upon project completion and deployment. I have Rails development firm and are looking for a long lasting relationship.