I have been wanting a Julius gas mask in black lately because I don't really have a decent black bag. Here is the one I particularly want, the large version in black.

However it is from 2008 and may be impossible to actually find. This is the smaller version of the same bag:

For sizing reference, here it is worn, in smoke rather than black.

Finally, there is this version, which is similar to the one above.

Here is the issue. Do I:
a) Wait for the first bag, ie the one I started out looking for, and possibly never find it,
b) Buy the second bag, which I can do now,
c) Wait for a month, since the dude in that last fit pic says there is a good chance he will sell me the bag next month,
d) Buy the small bag, wait a month, buy the other bag, and then sell whichever one I find less useful?
I am leaning toward the last option.