Take a look at Blazer Marine's Sport-20 [link=http://www.blazermarine.com/index.php?l=product_detail&p=100]L I N K [/link]

Brian can also advise you about what's needed for a E set-up.

If you're not fond of building a wood-kit , the Falcon catamaran also runs (more than) OK on a E set-up.

Or take a look on the OSE-website [link=http://www.offshoreelectrics.com/]L I N K [/link] if there's something you like.