Even though it isn't on your list, I think you should look into the FEP Quest. It is on the same level and price range as other markers you have listed, and is much easier to maintain. Not saying that you aren't good with markers, but at the age of 13, simplicity helps. Well not just at 13, but you probably know what I mean
The Quest is a great tournament marker, and can keep up with just about anything. I also recommend the NXT and the Legend from your list. The pm8 is also in the range