I'll try once again with Bruteforcer 1.0.3 version, let's see if do it twice will work. If not, could you give me the source for the 1.0.2 bruteforcer?
Btw, it would take a whole day again for me since my pc was a potato :')
I successfully managed to get the key, open the PCK and extract its data using the latest versions of PCK Explorer and Bruteforcer.
You can simply use the address from the screenshot as the “Start Address” to get the key instantly.