A3 Black-White Photo Restoration

I have a single black-and-white photograph in A3 format that I need digitally restored. The main goals are to remove all visible scratches and blemishes, sharpen the overall image, and generally bring out more contrast and detail so the final piece looks crisp when re-printed at its original size... (Budget: €8 - €30 EUR, Jobs: Digital Art, Graphic Design, Illustrator, Image Analysis, Image Processing, Photo Editing, Photo Restoration, Photo Retouching, Photoshop, Print Design)