Regarding WC3 v1.13, another way to play this version could be to download from Blizzard's servers the free v1.27a digital version. And then you can downgrade it to 1.13 with a third-party downgrader.
These third-party downgraders each have their own specific merits and downfalls. afaik none of them will give you an exact binarily identical set of folders and files, especially when compared against a properly upgraded 100% official WC3 game. But hey, neither is the official v1.27a digital version to begin with when compared to a genuine 1.27a. The reason is, this version is an "a2" version, despite the full version number being identical to the one for v1.27a
I *really* do not want this download server to get decommissioned. I would like it to get enhanced and improved. But for that, it must bring Blizzard good PR stuff, and my belief is that is up to us all to do our small part (should we want to, that is).
As for me, I have already downloaded D2+LoD, SC+BW and WC3+TFT (this last game two times, for testing purposes), all three games in American, English and French, all for PCs.