Hey DABhand, thanks for the tips!
I managed to find the screen update address the human player used for resources, which the comp player never uses, so was able to modify only the human player values.
I have tried to use your method for finding the specific pointer to the human player's address for instant build, seems that both player and computer are obviously using the same routines and the pointers are different for EACH building

not just a simple matter of either human or comp? i might be wrong but this is what my tiny brain is interpreting now.. mebbe I'll post the Tsearch results later