First of all, you can try the
GMAT Score Estimator and see your performance level for the Real GMAT.
My guess is you need to scoring closer to 650 on the Kaplan to approach 750 on the GMAT.
There is not really much info to provide a recommendation. Your verbal looks a bit low, but that's Kaplan verbal - what was your split in GMAT Prep?
Since you have a month left, focus on your weaknesses. CR and RC are usually the worst on this forum, so get the Manhattan CR book and possible PowerScore SC. The Manhattan book will come with access to 6 online CAT Tests included with the purchase - a great value.
Make sure you are taking as many practice tests as possible this last month to hone your strategies and stamina. This is the time to really polish off rather than do a lot of learning. If you find that you are still lacking in many areas, may make sense to reschedule before the 2 week deadline. See this post for the strategies for the last few weeks before the test:
test-day-warm-up-78595.htmlYou must get an
error log and print out or save all questions that you make mistakes in. Review them over and over.
If your math basics are not solid, consider getting a Kaplan Math Workbook or
Manhattan GMAT Series
For RC, the best recommendation is the
GMAT Fiction (see this post for the idea behind it) - I think you still have time, but you need to really dive into it. This is especially true if English is not your first language.
This is as far as I can go with the info you provided. Let me know if there are any questions