Here are some links to items you may need:
WHERE TO BUY ROPE
I am constantly asked where I got my rope from. I bought mine from the manufacturer Whittam Ropes in Melbourne Australia. You need an Australian Business Number to purchase from them. You can also get halter rope and paracord from cams cords in Brisbane. I have put some links to other places below as well, since most of my enquiries come from other countries.
Roller buckles from Australia (cams Cords)