i did not necessarily mean get a WH bar
i meant if you want to part out a set up, you should check out the WH stuff
the chicken loop, covered lines and cleat are the same and you can either swap out the swivel or just use the one you have
I tried this and they just don't make them as spares. At least when I wanted to just get the center line and chicken loop.
For the clam cleat I just used 2 stainless steel nut and bolts I got from the local hardware store. The piece of plastic is there just to act as a washer as the bolts are small and go thru the rope. I just didn't want them to have a chance to pull thru. I don't even remember where I got the plastic.
Cutting the bar is easy. First you have to cut the rubber sheath around the bar ends off so you can drill out the rivets. Next you want to measure how far from the end the foam is cut back and write it down. Figure out how much you want to cut your bar. I just went to 14" so I cut 1 & 1/2" off both ends with a hack saw. then cut back the foam. I put the ends back on lined them up and marked where to drill the holes for the rivets. I pulled off the ends to drill the holes then before I put them back on I used a 2 part epoxy for a little extra strength hold. Put the rivets in and done.
To get the center line the right length I just measured the original setup from the top of the chickenloop to the swivel and did my best to match that length. I want to say it is somewhere around 27". I then made my center line and trim strap that length and put everything back together. Then I went outside and made sure it was right by doing a basic line tune on the bar. Same as you would if your front lines are too long.
As for the the rope diameter I want to say it is 1/8 spectra I got from West Marine. It is the same size as the slingshot center line smaller half.
Next time I mod a bar I plan on making an in depth tutorial. I have actually use the 14" bar on a 13m fuel and it even worked there. I all so have cut down a Wainman bar to 12.5" (I screwed up on my take off's) But the bar works great on the 7m gypsy. Hope this helps.