That sort of works. One it requires users do a bunch of setup both initially but also every time they want to switch in to tor mode. The bigger issue is nostr over tor is much better if you’re connecting to onion service relays and don’t leave the Tor network. 

We need it to be very easy like tap a button in the client to turn on and off tor mode and when you are in tor mode it finds and uses the onion network version so the traffic stays private.