anyway shemous, you really do not need all that re-entry permit, first of all, you need to calm down and relax alittle bit, congrats meanwhile on your greencard, i have a friend who got her greencard a year and half ago, she moved back to her home country to leave with her husband a month after, she comes in before the expiration of the 6months, she's been doing this for like a year and she is total fine when it's time for her to naturalize, she'll move back and do what she needs to do, so as long as you come in before the expiration of 6months, you really do not need all the re-entry permit, she didn't apply for one, because there is no need for it, honestly stop worrying so much, but if you doubt consult an attorney.