Hi my name is Max, I invite you to check my profile, I have a very long experience working with WPF and C#, I have been teaching these technologies a couple of times even.
I have no problem to show you my skills, just send me a small part of what you need and I will do it for free.
Regarding my bid, I am bidding on an hourly bases, I cannot commit for an exact price because I am not able to evaluate the exact amount of work. However if you provide me more info I will be able to have a more accurate idea.
Best regards,
Max