I think it will be very hard for them to get this reviewed and/or measured by anyone with any industry creed (i.e. something this serious needs an industry heavy weigh to bless it, not [and no disrespect intended] say The Part Time Audiophile or Audio Bacon
(1) I dont know but I would predict that the pair we see in the photos is it... the only ones in existence **
(2) based on the above and their weight, shipping these to anyone with any industry creed will be expensive/risky and they would need to fund it
(3) Most magazines that promote this level of stuff (stereophile***, TAS and their local British press) would likely not consider reviewing something so bespoke
Maybe I am wrong but I am sure if they were serious about their product they would have got reviews done already
Peter
** To quote "Thousands of hours go into the casting, engineering, construction and finishing of the Cosmotrons. The mirror finish on the speakers takes several months"
*** I know stereophile have rules around only reviewing gear where XXX numbers of dealers exist or if online only, some degree of financial history/stability/service behind the online presence