A norton 4 / 8 or a naniwa 3 / 8 stone should cover most of what you need unless you damage the edge badly. Everything after 8k is just icing on the cake as your razor will be shave ready at 8k and after that all you are doing if refining it. A couple laps on the crox strop will work well after the 8k.This is a good way to start as if you can't get a good shave off of the 8k higher grit stones won't be any good. Good luck