Well I finally did it. I have been trying to complete this part and have thought of idea on how to do it. Then I looked at Tony's web page.(He built an R-80 in Australia and his web page can be accessed through Bushcaddy.com) It worked so good that it took only an hour to do. Mainly because of all the setup you have to do. I used a come along to pull the shock cord. Make sure you alternate the inside and out side of the cords. Best way is to set them both on one side and pull the outside one in place first. Then pull the inside one to the outside.