Deus Ex HR achievement help

[Link XL1]

So I'm on my 3rd playthrough of the game and have been collecting the eBooks for the Doctorate achievement. however, when I arrived at the very last one, I was required to have level 5 hacking (a skill i havent invested in on this playthough). there is no code for the safe, and id rather not have to run through the ENTIRE game all over again.

TL,DR
So heres my question, if i buy the explosive mission pack and get the auto hack tools, will they be added to the save file that i've already started, and will i be able to find one in the area leading up to...

SPOILERS ........................... megans white room where the level 5 safe is?

END SPOILERS

or is there any other way to get this last eBook and 100% the game without starting over?

 

[Link XL1]

thats the thing: THERE IS NO CODE! idk why they would ever do such a horrible thing.

what i want to know is if ill be able to find an auto hack tool in the level leading up to it

 

[fireaura08]

The extra hacking tools are added to your stash in Detroit, behind the television.
In any case, start investing in hacking. It should be one of the first skills you level up with Praxis.