Appcelerator cross-platform web shop

Im looking for someone to turn my web shop made in Opencart into native apps. I have chosen appcelerator titanium to make it cross-platform. So I am looking for someone with skills in BOTH Opencart and Appcelerator. The web shop provides limited campaigns with products for 4-5 days with fashion products. And the app should be basic functionality showing the upcoming and running campaigns from the database. If you click on a campaign you see the product and you can check out with PayPal. It should also basically show a list of brands (manufacturers in Opencart) and a few simple pages with text information. Before entering the app you are required to login, you can also sign up and forgot password inside the app. this is it I want this for: iPhone + Android + mac + windows When applying, please provide sample work in the systems as well as a description on how you are planning to integrate it from open cart to appcelerator.