Get started
Put the two "Optimuscan.zip.001" and "Optimuscan.zip.002" in the same folder then unzip Optimuscan.zip.001. The output folder should be 7,57 GB.

Find the Contact Sheet at ../Optimuscan/Contact_Sheet.jpg

Find some references photo at ../Optimuscan/_REFERENCES

Install the Blender (2.80) addon 

Find the blender addon under the _PLUGINS folder.
Install the addon from the user preferences panel. 

Install the Octane Standalone 4 script
Find the octane scrip under the _PLUGINS folder.
Copy the “.lua” file to your octane scripts directory. 

Import model to blender

File > import > Optimuscan (.obj)

Import model to Octane Standalone

Script > Optimuscan_obj

Then you can easily import model, the script will setup the material according to your render engine.