Hi Bearded Guy,
I picked up my blocks at the same place that sold me my kayak. I think any Hobie dealer or sailboat shop should have them as they are a fairly common item. As Wndrfl stated West Marine is also a good source. They are also for sale on page 29 of the new Hobie Kayak catalog and are listed as micro blocks from Harken. The two I used were both the ones listed as H225. H224 will also work fine. H233 is good if you want to permanetly mount the block to your hull. I also used a stainless steel carabiner to clip the block to the rear padeye and the other one to either an available shockcord end screw or you may want add a new padeye. Personally, I don't want to use a cam cleat when sailing because I want to be able to quickly let go of the sheet in a gust. However, those are also available on page 31 of the Hobie catalog or at the sources mentioned earlier in this note.
If you're like most of us you're going to love sailing your kayak. It rare that I go out without having the sail available for use as I want. Happy sailing!
