If time is short, then I would say you're OVER thinking it. Stick to a handful of compound lifts to make the most of a limited amount of time. For example, do like a three day split that looks like this:

Routine #1:
Bench Press
Squat

Routine 2:
Overhead Press
Deadlift

So over a two week period with a three day split it would be this:

Week 1:
Day1: 1
Day2: 2
Day3: 1

Week 2:
Day1: 2
Day2: 1
Day3: 2

Rest every other day and take a full two days off in between weeks. If you eat correctly you will make gains for a long time before you need to change it up. If you insist, you can do some cardio on your off days (with the exception of the weekend) or some additional work on limiting factors (abs, lower back, triceps, whatever). I recommend interval training, look it up if you don't know what it is. Basically it mixes sprints in with jogging.