Don't have a lot of time, new job and new home but from July I should be able to continue. So far I did a test in Unity and I am quite happy with the pillars.
Yet I wonder how the whole scene will look like. Light baking and color grading will be the major challenges I project to achieve a similar look of the original.
In those shots I used downsampling so the image was rendered in 2-3 times of the resolution.