consider a Quick Hitch or a Pat's Easy Change for her draft links. No matter what she buys, hooking up a rotary cutter can be a real PITA with no Quick Hitch or Pat's Easy Change (I had the Pat's system on my 790...bought it because of the rotary cutter hassle). The Pat's system requires no modification to any implement...a quick hitch may require implement modification.
Tell me more about this, no one has not said anything at the dealer about this, what price am I looking at and do you get this at the JD store?
If you've ever hooked up a rotary cutter...well, you'll know what I mean. If you haven't....they're heavy implements as well as big (my Land Pride 5' cutter weighs about 650 lbs and is 8-10 feet long). If you manage to get the tractor perfectly aligned, hook up isn't bad. However, you probably won't get it perfectly aligned. In this case, this requires shifting a pretty heavy, bulky implement until you get the lower links' "eyeballs" in place. Working around horses, I'm sure you're strong...but it's also a matter of enough personal bulk (petite might not be an advantage) to shift the cutter around.
With the Quick Hitch (assuming the implement fits the Quick Hitch), it's just a matter of backing up until the implement's lower pins hook into the QH hooks (if you buy a Deere QH and a Deere (or Frontier) cutter, they'll fit, no problem).
With the Pat's system, it's also a matter of backing up until the hooks attach...but you'll need a spreader bar (Pat's sell these, but easy to make too) to hold the draft links in position.
If you stick with all Deere implements, go with the Quick Hitch. If you buy other manufacturers' implements, I suggest the Pat's Easy Change would be a better solution.
Pricing:
The Deere QH will go around $200, IIRC. There are other brands considerably cheaper, but these may require modifications to fit.
The Pat's Easy Change must be ordered online and costs about $180 plus shipping (there's a "Sticky" thread in TBN's Attachments forum for ordering, BTW). If you do go with the Pat's system, order an extra 6 of the bent washers....
There are a lot of threads (mostly in the Attachments forum) on quick hitches as well as the Pat's Easy Change. I suggest you use the TBN Search function and do some reading. May as well do research on the 790, 3005 and 3032 as well.