Need UI mockup for iphone app

Hi there,
I need a UI design in photoshop for a UI concept. I will be showing this to friends as a mockup- ios8. I know for certain there are TONS of UI kits and templates available online so this should be easy if you know what you are doing. I'm not looking to spend a lot on this- i'm not going to be using it, this is just as a mockup, idea for a presentation but want to make it look as real as possible =)