You might try one of the .zips. Very competent admins who defederate from next to nothing, leaving the choice up to the user (mainly as opt-in blocks, with just ~3 opt-out ones iirc).

If you roll your own though then probably PieFed/PyLova would be much easier than Lemmy to deploy and manage.

Regardless of how the most controversial communities on Lemmy.world decide to be, it’s good to spread out and decentralize.