Does Anyone Have The Right Tools For Nsmb DS So That i can change mario into someone else

Nobody hasn't really done anything but change the textures of Mario, but Ray and Freeze did replace Mario's head with Toad almost 10 years ago. You have to know quite a bit about modeling, and you can probably use something like Sketchup or 3DS max, and you'll probably need MKDS Course Modifier. Whatever model you import or replace has to be the DS's resolution.
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NSMBUDS - Discord Server 1 - Discord Server 2 - Youtube Channel

But is There A Way To make 2 NSBMD files Into .bin

Unfortunately it is not possible to change Mario's model unless you have Maya 2011 and it's plugins, even that way it's not guaranteed that you will be able to correctly do it. It's just too hard. You can however edit small models with no bones using tools made by the MKDS people, one example is the blender IMD plugin.
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NSMB Hacking Discord

Does Any other Version OF Maya Have The Same Plugins

That is the latest Maya version supporting the plugins and you will have to find those yourself.
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NSMB Hacking Discord