Accelerator Jigsaw Puzzle

My learning with Blender continues. After I created "Fabrica" I knew I could use the same technique to update one of my favourite Lightwave renders from the '00s and in the process do a deep dive into Blender's polygon modelling, UV editing, particle system, shader editing, volumetrics, animation and lighting systems. I'm also getting used to a new renderer (two of them actually) that can use either my CPU or GPU. Most sources say using the GPU is faster but then most of those sources don't have a machine like "Rochallor". That said, working with Blender has seriously made me want to upgrade my 2080TI to a 3090. If only I could find one for sale :-(