Need Iphone5 2D Game (Objective-c/Xcode) From C# Example Programmed

I have created a simple text 2D game in Visual Studio using C# with WPF GUI. I now wish for the game to be developed in xcode and Objective-c so I can have the game on Iphone.

The problem is a direct port cannot be done as WPF GUI technologies are not supported. Therefore I can send the source code of the game and for a experienced programmer to run this and copy the style/logic/frames of the c# version. Once can open the code using Monodevelop and Xamarin studio to make life easier (experienced programmers should know of such tools)

Again this project is for experienced programmers only and the price is negotiable (£500 starting + on analysis) as it will need to include some mini db in background and some small extras, the graphic work is no needed as I will skin the game later, all I need is the core logic to work.