This model is lighted for eevee but it should work fine for cycles, just hide what you won't use. The backroom and the front of the church are separated by collections, you can mute/hide the collections you won't use to save you some memory, doors are rigged, include volumetric cubes for both back and front of the church. Also an HDRI of the corresponding area outside of the church.
This model uses FF7R Intergrade PC textures.
Thanks to
necroalx for the files and HDRI
Warning! The texture pack is about 1,47 gb.