From the Dagaz website: "
with over 500,000 (yes, that's over HALF A MILLION) possible configurations using stock DAGAZ parts, built carefully and by hand, one-by one in a small, specialised workshop by two mates"
That particular case seems to be a special offering of theirs. I have not found such a case anywhere else.
As for the movements fitting or not, check their datasheets on timemodule. Judging by the datasheets, my guess is that the NH70 will not be able to use the stock 7S26 spacer, Like the NH36A does.
I can't say this for sure because I have never seen a NH70.
If you need something without a date check out the NH38A.