iPhone +Ipad App

Hi there, First of all you need to have good english. Second of all i want to see a mockup off the app i want before i select you and pay. I would like an app like the olympics must be able to let the characters race each other on there iphones/ipads doing hundred meters sprint, hurdles, javelin,shot put long jump and few others. If you can do this let me know. I do not have a big budget ill pay 1000 for the app to be shown to me and let me test it before pick and pay you. Thanks