Do you want to purchase yourself or find a rigger? You can buy at the West Marine store in Brick (I think it's a really good store) or order from SBO or Defender or several other on-line sources.
Or you can call Dave Thomson at Cedar Creek Marina in Lanoka Harbor (732-269-1351). He installed a Harken Mk IV furler on my Starwind 27 and has replaced rigging on 2 boats for me. He has installed numerous hardware items and rigging for
@Ward H as well. He can make any necessary sail modifications for you as well. It's an easy visit for you to find him and talk about it. I saw him just last Friday at Cedar Creek for a few projects on my boat. He'll be around all winter and is probably lining up winter projects.
Where do you keep your boat?