the wooden boxes usually don't hold anything bigger than 6/8.
there is this one:
http://www.vintagebladesllc.com/vsho...cat=134&page=1
but it is quite pricey
i'd take the recommendation to have a box made. it can be as big as you need, padded and a heck of a lot nicer than those shitty DOVO boxes

there is also this:

http://www.classicshaving.com/catalo...11/4011546.htm
still probably not big enough but it gives you the idea of what a nice box should look like