NC Mk 3.5 Scrutineering

If anyone has a template for a cover for the Fuel filler pipe etc where it passes through the NC 3 boot bulkhead, which can be sealed in place then that would be brilliant (or indeed has a cover they are looking to dispose of). In conversation with the club today it is obvious that this requirement is a local scrutineer thing and if I am to run next season it is something that must be addressed! PM me if you can help please