No, I wouldn't start an ebay case. It is very easy to get confused by borders, especially since Disney started releasing pins with what looks like one right on the real pin. The difference is this; on a real pin, the pattern can just stop and not run off the edge, but there is
no raised border surrounding the edge of the pin; the pattern just stops but there is still ~1mm of unmarked, unraised metal around the edge. On true fakes, the patterns stop 1.0-0.25 mm from the edge and run into a
raised border that the pattern bumps into. Think of it as a wall that surrounds the pin, at least in certain areas.
Also, it is very, very rare for pins like yours to get faked anyway; they are pin-on-pin meaning it looks like they are composed of multiple layers of metal and are not just one flat surface. When they counterfeit pins, they scan them in to a computer that reproduces them digitally; you cannot reproduce a multidimensional or multiple thickness pin in this fashion without much, much difficulty, just as you could not reproduce a dangle pin in this manner, or one with moving parts. Also, pins with a true printed lithograph or picture such as the background behind your Rapunzel (think pins with pictures of real people on them, like some Narnia or Hannah Montana pins) cannot be reproduced due to the same phenomena. 99.99% of all pins faked are small and thin (cost effective), flat and one dimensional (easy to scan and copy) and lightweight (again cost effective; made of cheaper metal). It is rare for high end pins to get counterfeited. This usually happens when the pin is worth over $100, such as the case with some Disney Auctions LE 100 pins, is extremely rare, and even more unfortunate.
On a side note, LE Paris pins that are numbered do not receive the second half of the number printing (the 134 in the 134/600) until after the pin has passed inspection during quality control. They could not number all the pins made and then throw out the ones that fail due to imperfections; the edition would be missing pins, so they only stamp ones that are real and have passed inspection. Scrappers of numbered LE pins like this usually will just say " /600" because it was supposed to be thrown out in the trash and never received that end number from the set size.
However, I will say that you have some odd discrepancies with missing letters and typos on the back. Had these been flat pins I instantly would have been the first one to jump up and shout "fake!" from the rooftops. Posting some detailed decent resolution pictures of the back so we can see what you are talking about would definitely help. However, I have Paris pins with similar errors that I know are real (have the card and know the purchaser at the park) so it is entirely possible that they all came that way. Paris pins can have some weird errors; check this out:
http://www.pinpics.com/cgi-bin/pin.cgi?pin=12502
Check out her eyes; they look awful. When we got this pin, we were sure it was fake; how could that EVER get approved? Much to our surprise, we found out they ALL came that way. Good luck and can't wait to see some pics!
~Geoff