Auto body repair & detailing: saab rearwheel arches, wheelhouse, saab

Question
i have been doing  body work now for a few years and still get stuck on how to fit wheel arches  the right way this is on a saab 900k reg rear arches could you shine a bit of light on this 4 me cheers dick

Answer
If you are replacing the whole panel rough out the wheelhouse the best you can and place the panel up yo the car ,clamp the panel so the lines are good and use a hammer to align the two panels together.Take your time you may have to put the panel on several times to achieve proper fit