I just checked e bay and there are some listed.
It might be worth a quick call to the manufacturer, they may have a support line or an answer for you.
A lot of clients like it.
At ContractorTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.