You would have to link the 3 on eBay as I can’t seem to find it on my upside down internet services here in Ausland. A sealed short pack booster box is arguably the scarcest sealed item in the hobby and with an approximate release period of around a year. NR had to best estimations a minimum release of 50ish days and probably not too long after that (again approximate). Base Set had very slow initial sales in Japan so those first 50ish or so days product may have been more restricted than later on when sales picked up later in the year etc.
So in essence you have to find the scarcest sealed item in the hobby and even if you manage this task the odds of NR are almost non existent. You can check this thread out it has some more early info on the early history of Pokemon TCG