Excuse me
If i were you, i would open that box, take a look inside (if that happens, let’s share it with us, please) and of course use the chemicals (and with different type of films, perhaps the chemicals are not ruined or useless - not all -). I mean, even being a collection item, you have two options keep it or sell it. You can keep the containers, the box, the instructions for romance (but using the kit aswell at the same time) or you can sell it, and never know!
I would give it a try for sure.