Never used the block and tackle but I have had to do the winch ATV method a few times. The B&T will work but I think you are going to run out of rope length most of the time. Have you or can you work with your ATV and a 100' of static/low stretch rope? I have done this and seems to do ok for me. The only trick you need to work out is you really need someone there to watch the animal while you are at the top of the hill hitting the winch button or driving the atv. The deer will get hung up and if you can't see it there's trouble.
If you do have a winch on the ATV you can pick up an additional shot of cable cheap. I added 40ft of cable with loops on each end that gives me roughly 80 ft reach from the winch without adding rope. The cable with looped ends, pulley and a couple of shackles are nice additions to your winching system..
good luck..
Last edited by buckwild41; 01-07-2014 at 05:30 PM.