Tips- Check carefully the quality of the s/s wire.
I replaced the safety lines on Trek 3 years ago. Some of the wire came from an Ebay online shop, some from Whitworths and some from the Stainless Steel shop next to Whitworths in Drummoyne.
Now, 3 years later some of the lengths are as good as they were the day we did the job, the others (I think from the cheap online shop) are rusty.
Also get some good bull nosed pliers and good cutters as well. This is so you can cut/trim the loose ends of wire out of the swage when each one is done. I found it was easier to put a big loop of wire around the thimble, pull it tight, then swage it, then cut off the stray end. That method was used after we found it was really hard to do the swage exactly in the right place and stay neat right at the end of the wire unless you have more arms than an octopus