That sounds like rebuilding the scene from scratch. I was just reusing a test scene I built long ago. I encourage people in this thread to try do it themselves. It was my first time ever using Octane, it’s not hard.
The light unit is a bit tricky though, I recommend using the Photographer addon’s Lumen unit as reference, and follow instruction on the OTOY forum to learn how to set it up in Octane’s nodes.
Though for some reason I found the 0.001464 value they provided didn’t work, using 0.0001464 seems to work instead. Not sure why.
For people that needs a reference for light power values, the Cycles light power in my comparison was 50, Octane after conversion was 7.81351, they should be about the same in terms of physical light unit.