Migration help for player character and their family Minecraft Comes Alive

I have a Dell Latitude D630 running Windows 7 Home Premium 32-bit, which I will soon upgrade in various ways so I can run a few classic virtual machines. I also have an Acer Nitro that had been running Windows 10 but it isn’t working right now so I have no choice but to use the Dell laptop. So I am about to start using it to play Minecraft Comes Alive 4.1.0 for Minecraft 1.7.2, but when I fix the Acer laptop and start using that as my main computer I will start playing Minecraft 1.12.2 with several mods including Minecraft Comes Alive 5.3.1. That said, when the time comes, will it be possible for me to transfer my player character and their family members from Minecraft Comes Alive 4.1.0 for Minecraft 1.7.2 to Minecraft Comes Alive 5.3.1 for Minecraft 1.12.2?