^good stuff.
did this about a month ago.
the hardest part was finding the right amount of spacers to go on either side. the easiest part was working the spokes and getting it true (something i'd never done before).
i think the wheel i had was spaced/dished for 5 or 6 speeds, but it might have been 6 or 7. i'm not sure.
my chainline is now great and my rear wheel is nice and (more) symmetrical.