The Salomon laces I bought from REI were exactly what I needed. I cut the old lace out, used a thread-ripper to un-sew the pull tab, and pried apart the slider. I was able to re-use the slider and sew the pull tab back in. Good as new!
The instructions for the laces included using a plastic clip to form a pull tab, but when I pulled apart the one that came on the boot I saw that Salomon had originally just tied the laces together in a knot and sewed it into the tab, so I replicated that. Took maybe half an hour to 45 minutes or so start to finish, mostly from having to sew the pull tab. I would have liked to have a shop just do it for me, but I guess in the end this is better because the boots are using the original hardware again and not the smaller running-shoe hardware that came with the replacement laces.