I would order that case ASAP. Even if you don't decide on the rest of the build. I picked one up yesterday and the price only lasts into today, or if/when it sells out. I wasn't going to miss out on that deal.
It is a nice looking build, if you are looking to crossfire later then you may want to swap to the ASrock 870 (which is $110 now
, up from 90) for the 8x8 lanes. If not that build looks great.