I think that I understand what you want to do.
But, I suggest that you re-consider the way this thing will work...
You push a button for half a second and the winch starts to pull, and continues to pull for ever
What if something goes wrong with the remote control?
What if you drop the remote control and it breaks?
What if someone is in the way of whatever is being pulled by the winch which is still pulling...
...and you cannot stop the winch?
I am sorry to be a "safety nazi" but if I understand correctly what you are trying to do, your system would be potentially dangerous.
JimB