No problem.
It should be noted that it's way overkill (actually, you go above the Karma cap for Positive Qualities). Just going Codeslinger + Restricted Gear: Cerebral Boosters 3 + Aptitude + Improved Hacking 4 is more than sufficient. Even just Aptitude + Improved Hacking 4 + Codeslinger is good.
Oh yeah, absolutely overkill. I've just seen some threads with crazy con/negotiate builds and shooter builds, but I'd not seen (not to say they aren't here) any crazy matrix builds. Was just an exercise in the rediculous. For the most part the character becomes unplayable when you go to extremes IMHO.