As everyone knows, when there's a current, you have to have more scope on the line. Of course, you may also want a quick disconnect on your end so you can pop the reg hose off once he gets to the surface. I'd recommend putting a lift bag on the requisite hose reel so you can send it to the surface for easier recovery.
Or just for fun, put the quick disconnect about 6 ft down line from the 2nd stage. Let him get started up then "POP" away they go, leaving you 54ft of hose to attach to your handy spare 2nd stage with corresponding fitting.