@CCCC Maybe it could be one wallet, that runs multipple TOR instances (slatepack addresses for many accounts simultaniously, sharing the same instance of the blockchain). So it would be a bit a server running and supercharged wallet with multiple accounts loged simultatniously.
Preferably each account would be be compartimentalised, e.g. virtual services. So an alternative would be very small minimal VM’s running in paralel with the full wallet. This would however increase the cost, so prefably they are like a light node sharing the same blockchain (e.g grinnode.live) for checking if transactions are valid, but each with their own privatekey.