Your plan sounds good. Here are a few things I would suggest:
- in RC, initially take your own time but make sure you UNDERSTAND:
+the organization of the passage
+ what AUTHOR is saying and what OTHERS
+ what is the tone of the author. Remember what author says/feel is most important. Others are just distractions.
It might be more effective doing 4 passages (you get around 4 passages during test) but focus on them. Gradually, you can practice with strict timings.
- It is a good idea to take your practice tests aroungs same time as your scheduled actual test.
- Read, if you can, on topics you are not comfortable with.
You can find a number of discussion thread in GMAT/Verbal sub forums on strategies.
All the best.
Whether you think you can or think you can't. You're right! - Henry Ford (1863 - 1947)