thanks for the chatter guys.. It helps to talk ideas outsometimes
the more I look into it,, the more I think yout right why reinvent the wheel.. The 1/2 webbing they have is flat web, it should not stretch that much but I am not positive, I just looked up 1/2 inch flat webbing on the web.. and breaking stregth would be about 1000 lbs, which means working load of what ? 750 or 500 pounds.
The 1/8" Amsteel shows break at 2500/1000 pounds and the 7/64" shows 1600/650 pounds If money is the issue it makes sense to back off and buy the 7/64 at .26 cent a foot and still have a stronger / lighter system