He looks a lot like my Boo in the nose. From what I read there are "normal muzzle" Persians and then the extreme flat nose, which are the only ones that can be show quality. After a quick bit of research there looks to be great controversy over the smushed nose/straight alignment (Nose, mouth, eyes, forehead, etc) of "Persians" and those are the only type accepted as show cats, and that the original Persian had a "normal muzzle" or a longer, more usual nose (Like my Boo) But there seems to be much controversy over all of this.
It gets hot here in the summer (90's already [F]) so I give my Persian a Lion Cut when it begins to get warm weather.
My father paid 275 for Boo and we have papers on him, Mom has hidden them somewhere. But he was from a BYB and his conditions were horrible. I don't know if I still have the pics of him when I first got him, but he was in bad need of a bath, poor baby.
Can't say on the fur. My Tortie was obviously a fluffball and she is now what I consider long hair, but it would technically be more "medium" hair. Boo is long hair, and will get mats easily. But brushing with a slicker (carefully) and keeping her groomed will help. I believe if you start brushing them as kittens they should learn to love it. Both of mine do.
Good luck on the kitten. She looks like she really wants a forever home. I hope things work out.

Edit: Meant to say that the controversy is more over stopping the smush face Persian breeding, from here
http://www.pictures-of-cats.org/pers...-breeding.html