I used to work derailments and on our sidebooms we had Hyster W12E (120,000lb capacity winches) with tailchains, and hammer locks..
When you purchase your new winch line, it will come with a really thick coating of tacky grease....LEAVE IT ON THERE....this will prevent rusting.
We used a forklift as a deadman weight and idled the winch to draw in the line, using a SHORT machinist bar with tapered end to guide the wraps tightly to each other...once you get the first wrap on each layer, it goes pretty quickly..
Also, FORIEGN produced wire rope is made to less standards than domestic line...
Memphis Chain and Cable in Memphis TN is REALLY good about providing the master spool info if you ask for it..Billy or Steve.
ALSO, keep it lubed.....a dry winch line wont respool/unspool as easily as a properly lubed one. Chain and cable lube, just spray the ****ens out of it...
And remember to inspect your line at the end of your excursion, to remove burrs, jus stretch it out fairly tight and use a right angle grinder to remove the hairs..
If more than 6 consecutive strands are broke in a bundle, then its time for a new one.
You can also get a "Donkey Di-k" or a swiveling hook/shackle to keep the line from getting twisted..
For Shackels, a 503 or a 504 is gonna be plenty for a Deauce..
Also, remember to keep weight on line with the throat of the hook pointed to the ground ( tip to the sky), that way if it were to break, then the force of it breaking will throw the remnant of the hook and line downwards to the ground...
Good luck, Happy winching. Watch your pinch points, and have fun.