iOS Developer needed to integrate Stripe payment gateway to Unity app

I am a Unity developer based in Melbourne Australia. I need to integrate a Stripe payment gateway to an app project that I've developed in Unity (C#, .net). The Android build is complete however the IOS build requires Swift code (suplied by Stripe as demo code for their API). In order to access the Swift code from Unity (c#) I require an objective c wrapper. I'm not a swift/objc programmer so rather than trying to work it out myself and save some time I would like to outsource this part of the project. The Swift code is complete and working, all I need is to objective-c wrapper to be completed so that I can call the stripe payment api (the payment call should return the payment result). This project requires expertise in Unity/Stripe/Swift/Objective-C. Anyone that's ever done a stripe integration into Unity (without using Unity plugins) will be able to do this within a matter of days. I have further more complex projects for successful applicant so this first project is a test of competence.