But If you did happen across one then you can bet your bottom dollar it's gonna be expensive!
Luckily K.S. Reproduction has been on the case and just finished the production of some new W lids then eh?
This new reproduction is made to the same original VW quality and available in six different configurations; 1950 to '52, '53 to '55 and '56 to '57 in sedan or convertible (complete with rain gaurds) form. They are coated in EDP Primer to protect the metal and also provide a good base for you to start with.
A perfect addition to any Resto Cal or Custom '52 to '57 Bug, at a less than the cost of an original Karmann decklid!

For more details visit www.ksreproduction.com/vw.asp