…no one (except scammers) needs it on|over an exit. Only as a hidden service.
DNS over TLS is unnecessary, DNS makes the exit. GOPHER? Who still uses that?
If you don’t know even basic things like ports, it’s not a good idea to start with an exit. I first ran bridges and relays for 2 years before I started with an exit. You have to process abuse and are legally responsible for everything that goes through your exit!
Everything is [here],(Tor Project | Relay Operations) including the answer to your red. exit policy config.
…is a joke. 
Calculate 50-100 terabytes for an exit.
Funny, Keifer Bly asked almost the same question a long time ago on the relay list. Back then I wrote the same thing:
Oracle 
is an asshole company, they have destroyed many FLOSS projects. I wouldn’t even take anything from them for free. Then it’s better to set up a bridge or snowflake at home. Hidden bridges are currently urgently needed for Turkmenistan: help-turkmens-to-bypass-internet-censorship-run-an-obfs4-bridge
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