Red, the commercial made rig is the Boa Rig by Owner Hooks. You should be able to find them at any major sporting store. On line at Cabela's, etc.
I tie my own sliding rig by snelling a hook on the end of the leader then threading a second hook over the leader and snelling that hook without going thru the eye of that hook. Just lay that leader alongside the second hook and do your snell. It will hold up to quite a few fish before the snell comes loose from working but if the snell comes loose you will not loose the fish or hook because the hook will just slide down the leader and stop at the first hook. I hope I explained that okay and didn't confuse anybody.