Dedicated “Zcash on Tor” .onion addnode’s are here:
TAILS is ‘amnesic’ and is therefore not as ideal as some other solutions, perhaps, for running a full Zcash node / wallet.
If you are working ‘strictly’ through TAILS then you should already be somewhat familiar with using Encrypted Persistence;
Whonix (server and gateway) is also a great alternative option. However, the main release is still only 32-bit (unless you can build from source);
Moreover, Qubes-Whonix is 64-bit and this is where I’ve focused my own attention currently on getting this type of set-up working with a detailed guide also in the works.
I’ll have a go with TAILS this weekend (or during next week perhaps) to see what I can get working. 