>>328766658
>know that your cable *will* die
Not if you use a piece of flexible, but still hard enough tube to prevent the cable from bending too much, at the back of your head. As an alternative one of the velcro tapes the index came with also works.
Also, if you make a conscious effort of checking some cable untangle tool every 10 minutes or so, you will be able to avoid killing your cable with a pulley system.
That being said, buy 2 pulley packages. Having more pulleys reduces the strain on your cable. Also, check for some youtube tutorials (or the pulley manual) how to allign the final pulley correctly (pyramid form).

In general: Just avoid hard bends and twisting or straining the cable over a long time and you will be fine.