That's a pretty high end gun for a single paint job. If you paint cars semi-regularly, it will be defintly be worth it, but for a single job, it depends. High end guns tend to have much better atomizaton and will produce smoother top coats than the less expensive guns. The cheaper guns will require more wet sanding to smooth the clear coat. So either pay mucho more $$ up front on the better equipment or spend more time finishing the top coat.