Hello, i'm a french builder of chesa 17lt and i want to find a plan for make a deck hatch "oval"!

[IMG][url=http://www.hiboox.fr/go/images/divers/imgp3827-copie,85f3db8b2d4b921b3d78b95c1c09d10b.jpg.html][img]http://images3.hiboox.com/images/5309/85f3db8b2d4b921b3d78b95c1c09d10b.jpg[/img][/url]

Thank you for your help!