mounting champion hack to 03 vulcan nomad

Does anyone know where I can purchase some strap clamps to temporarily Mount my hack to my bike to figure out where I want to put my permanent mounting brackets or ears at? On my 03 vn1500 nomad, I don't like the brackets that it came with. ... I guess I'm just used to the late and great C.J Foust ( ride-by-side) mounts and don't like the conglomeration of welds and cheep bolts that this came with. .. After growing up in C.J's shop every weekend with my father when I was a child, I guess I just picked up on perfection. ....