3/8 poly rope will work really good. What I did with my clam voyager was take a long streatch of the 3/8 poly and cut off about 20'. Tie a large loop (about 3' diameter) in both ends. I'd then loop my harness through the rope that comes from clam and put each loop over a shoulder and it made a really good home made harness. If I had a fishing partner then each of us could loop an arm over a shoulder and both pull that beast of a shanty.