@Mike - back to the thread topic
Your list looks pretty good. I would honestly think about the Shapton 500/1K/6K set: http://www.chefknivestogo.com/shgl50set.html
. You'll save some money and I think the 500 grit stone will be much more useful than the 8K after the 4K. You can refine the edge just a bit on the 6K after the 1K to still leave some tooth to the edge and the 6K would strop nicely as well for touch ups.
The Universal stone holder is very nice, don't spend more on something else.
I actually use the Atoma 400 plate for flattening. It's slower than a 140 plate, but it leaves a real nice finish, especially on higher grit stones. As long as you don't let your stones dish much, it won't take long to flatten them w/the 400. You can even use the 400 to cut bevels on duller knives before moving to the 500 Shapton and up your progression.
The Shaptons come very flat OOTB.
Another option to save $ is to get this Universal holder/strop set: http://www.chefknivestogo.com/stsetwiunhob.html
. It's got the 140 plate as well. You can use the 140 to flatten for now, then get the Atoma 400 later for the higher grit stones, and to smooth out the 500 and/or 1K after you hit them w/the 140 plate.