Hi DorkyBurger,
First off, a 710/Q49 is an outstanding Score, so you can comfortably apply to any Business Schools that interest you. As such, a retest might not be necessary. Most Schools expect that you should be able to write a decently-organized essay in a short period of time (which shows your ability to communicate effectively with written words). As long as you score at least a 4.0 on the AWA (which you have), then you should be fine at most Programs.
Since you have a list of Schools that you want to apply to - and at least one specific Admissions question - you would likely find it beneficial to speak with an Admissions Expert about your overall profile and plans. Those Experts should be able to answer your Admissions questions and help define the specific areas of your profile that could use some improvement (and the more time that you have to act on that advice, the better). There's a Forum full of those Experts here:
https://gmatclub.com/forum/ask-admissio ... tants-124/GMAT assassins aren't born, they're made,
Rich
Contact Rich at: Rich.C@empowergmat.com