I know that once my 12 weeks are up with SL (I'm doing it purely to build strength so I can start other programs more in line with goals, rather than SL for SL), I'll be taking the basis it has and adapting it. So take the three big lifts, and do them on a different day, and then build the rest around that.
Looks, in line with what you've put down to be honest. Bench on Monday, Deadlift on Wednesday, Squat on Friday, then add some additional things in.
I might try something like chest/abs/tri though and legs/shoulders. That's just personal preference though.
kd