Make the Toon Shader from a former Unreal Live stream work in VR with the forward renderer?

I followed this live stream to create the toon shader: Post Processing in UE4: Cel-Shading | Live Training | Unreal Engine Livestream - YouTube
I am trying to create the toon shader for VR, and I already know that the GBuffer scene textures are not available with the forward rendered, keeping me from getting the World Normal to create the interior lines on the shader. I want to find out how to adapt the shader to work in VR with the forward render. I am Usine UE5, but this isn’t a UE5 issue as it didn’t work with the forward renderer way back in 2018 when the stream took place. If anyone could give me any advice or pointers it would be great.