Ocean Solutions at Yatala is who I use for my anchors and Bow Rollers (5549 1212)
Sarca are good, Manson are better, Rocna are excellent anchors.
Have a look at the Anchorlift bow sprits.
I have one on my Haines with a 10kg Rocna anchor.
Best anchoring system I have used.
http://oceansolutions.com.au/cart/ca...?CategoryID=77
(Tip: remove the captive screws and loktite them)
Cheers
Pete