Ultracart API Javascript Integration (Willarin)

I am looking for someone to implement a custom javascript checkout form on my website. Experience with Ultracart API is DEFINITELY NEEDED! Please don't bid if you have no experience. The checkout is a two page process. Web pages are completed, this project will only be a coding project. Page #1 - Collects customers name, email, address, zip, phone#, and email. Page #2 - Customer enters credit card information. Developer should also implement onscreen error rendering. Here is an example: [login to view URL] [login to view URL] (Exit handling scripts are not needed for this project) I have attached the javascript checkout developers guide for reference. This should be an easy project for an experienced javascript developer. I am looking to begin an ongoing relationship if the project is satisfactorily completed. Please message me if with any questions about the project. Thanks and happy bidding!