amazon in app api and paypal api in webview app

i need someone who can integrate the amazon in app purchase api into my uiwebview app and also paypa apil. it will be the same app but i need a version with amazon in app coded into it and one with paypal coded into it. it already has google in app purchases in the code. i prefer to get same person to do both at a good price but if you can do either let me know. the app is connected to this web page [login to view URL] use demo demo1 to login. the in app purchases are here [login to view URL] and here [login to view URL]