Buy the puzzle here www.etsy.com/listing/15363210... Reiden's RU-vid channel youtube.com/@3dmoddedpuzzles8... I'll leave a comment on the solve at a later date. Please note the quality of the 5x6x7 I received was a prototype.
Thank you for the highlight!! Apologies you had to send it back for a fix - I always appreciate your patience with my prototyping. I have made a second version of the puzzle where I truncate the inner base 5x5. I have managed to decrease the size to around 80 mm cubed. It’s really hard to notice, but the version you have is not actually cubic - it’s around 105 x 100 x 95 mm. However, since the concept of proportionality is out the window for Ghost puzzles, I decided to keep the new version cubic and optimize on a smaller size. I am building it now and will have a video up soon!