Comment by aerophilic

There is a neat solve for the thermal problem that York Space systems has been advocating (based on Russian tech)… put everything in an enclosure.

https://www.yorkspacesystems.com/

Short version: make a giant pressure vessel and keep things at 1 atm. Circulate air like you would do on earth. Yes, there is still plenty of excess heat you need to radiate, but dramatically simplifies things.