Idea For A Video ~Need Some Suggestions Plz Read~

Okay so I thought of this short film thing but theres a few things that I cant decide on! So I wanted to ask you guys (and gals XD) for some help or suggestions. Okay so Im going to tell you the basic plot of this short film and then tell you what I cant decide on at the end
Now this isn't the most detailed plot ever,just an idea I got when I found some envelopes. Since I don't use envelopes for anything I decided "I just thought of this romantic little story in my head thats so cliche! I think I can use the envelops for that..." So yeah Im thinking of doing a live action film.Okay so heres more information.

The story basically revolves around a young girl. The catch to this film is that theres no words and no faces are shown,just music. Okay so the girl comes home from school and sees a letter on her front door. She brings it up to her room and sets it down for a second. The window magically opens and flies out her window. She chases the letter and finally catches it. She opens it and reads it,the rest is basically up to the viewers imaginations

Okay so something I cant decide on is if this should be live action or not. See my original plan was it to be live action and most of the film is a first person view basically it would be me holding the camera,so from the girl point of view. There would be a few shots where it's not first person,but as I said before it would probably just be shots from the nose down (that sounds kinda weird but it's the only way I could explain it XD) So I wanted you opinions! Should it be live action or animated? See the upside to it being live action is that I could get it out faster,but the bad thing is it would be like a one man (or woman XD) job so I would be the cast,director,camera man...everything XD Unless maybe I could get some friends to help. (and by some friends I mean a friend XD but that would be enough because all I need is for someone to hold the camera and be with me for moral support when I publicly humiliate myself while I running after a letter XD)
As you can see this production is low budget. The only props I have is like a said,some envelops I found,paper,and the set is my house XD but since this is a small film I think it'll work out perfectly! Another thing I should mention is that some scenes will be stop motion animation.Like the window opening,some scenes with the letter,and stuff like that. And luckily my mom is into taking high quality pictures and videos of our family (IDK theres something wrong with her,she's a mom of four and she has a paparazzi camera XD) so I could borrow her camera and video recorder!

Sorry for this being so long! Okay so now I want you opinions! Should I ditch the live action and do an animation? Should I change the story? Suggest anything all opinions will be taken into consideration! I hope I can make this story come into reality in any way! Thanks for reading all of this if you did!