adjustment needed

In the first my project freelancers have estimated the project with too high bids So I have decided to start one more project with the fixed price of work, and the complete list of the necessary changes. The maximal Price for that work is $200-250. If you don't agree - don't spend my time! Bids only from freelancers with responses and experience are accepted. Website is on Joomla+Virtuemart cms. 1. Order Page like there - [login to view URL] But I need 1 more option - Language (there will be 7 languages, but order and site is only english version) 2. Fast cost calculator like there - [login to view URL] (left side) 3. Customize Discount System that can work with Virtuemart. 4. Help with billing installation.