Should I get this cat?:)?

Hi :) I am a HUGE animal lover! I currently have a 3 yr old Chihuahua (my pic:)), an old (12 yr old) Maine Coon , and an American Short Hair (6ish years)oh yeah, and they're all male. We've had the old cat since he was a kitty, and he is now a grumpy old man!! He has lately been warming up to us a bit more though :) the short hair is just as playful as any kitty, even though he weighs about 20 lbs. :/! He definitely outweighs my Chihuahua, even though he is a pretty big Chihuahua at 10 lbs. The shorthair and the Chihuahua get along pretty well, but the Maine Coon pretty much ignores them, which is ok. sooo... my cousin had to take care of her neighbor's pets and I went over to help. I saw this furry blob under a chair and I crouched down and it immediately came over to me. I let her smell me, and then she wanted to be in my arms! I could tell she was declawed on her front paws :( because she was kneading my neck and nuzzling in my hair :) Most cats get bored of being held and they get wiggly, but she didn’t want to get out at all!! She immediately fell in love with me just like I fell in love with her! Even my cousin could tell!! The cat is already about 7 years old, so I am surprised she is so sweet! Well my cousin’s mom said the owners were looking for a home for her, and I was so excited!! But then I realized, was it just like when you say "oh you can have her!" when someone says they love one of your pets, or do they really not want her? I would like to find out from the owner my self, just in case:) but I don’t think my parents would EVER let me get another cat, because when I go to college in a few years I might not be able to take her (I would try though!) She is a Teacup Persian, and I know I would have to brush her a lot, otherwise she would get mats like she has right now, and she also has the goopy eye thing like my other cat, and I would have to clean that with a warm cloth often. I honestly think I would make her life much better!! OH! And she already lives with 2 poodles and another cat, so she wouldn’t mind my cats(but they might mind her! :/ not sure yet) All of the pets I have ever had I had an immediate connection with them, I don’t know what it is, but when I meet an animal I connect with, I can’t stop thinking about them!! I also work hard if I want an animal, it would never just be handed to me, I always do a lot of research! I would like to know if I should continue to try and convince my parents? I am willing to pay the owners (with my own money, as I have always done for my own animals) if they don’t want to just give her away, and I’ll buy special brushes, toys and stuff :) Would it be a good idea to get her, I really have an amazing connection with her? Any advice would help!! Thank you so much in advance! :) (and thanks for reading so much!!