Many of you (Aussies and visitors to Aus) will know Carey Harmer who used to work at Sea Optics (Subal/Inon) in Adelaide where he carried out their servicing and repairs.
Some of you will also know he is no longer at Sea Optics... he's still doing their servicing but has also started his own business Underwater Housing Servicing catering for many brands of still and video housing; and lighting too.
Carey has helped me out in the past with a couple of modifications and always offered good service, so if you need anything he's your man.
He can also help you find a leafy sea dragon or two down their in SA too!