Hi week-floor,

This would require converting the Lights, Camera, and Render-Settings.

I have not heard about any converter that would do this.

Perhaps check out if some materials from the Asset Browser can be used.

Sorry, I'm also not aware of any tutorial about it.

A nice introduction to Redshift 3D is here.
https://cineversity.maxon.net/en/series/getting-started-with-redshift?tutorial=getting-started-with-redshift-part-1-redshift-overview

All the best