Thank you for posting this thread. I'm the original poster from r/Roms and Romhackingdotnet's discord server, I took the original pictures in pursuit of this rom.
Since you have made this thread I don't see a point in me making one now, hopefully someone can give some insight as to where we might be able to find this.
I hope above all that we can find the original 49 in 1 rom, as that was a big part of my childhood.

If anyone needs more information: You can see pictures of the teardown here. It was purchased over 15 years ago from a shop in the UK.