asalaam alaykum
you have to recite surahs of the quran in order they are given for farz nafil and the first 2 rakats of the 4 rakat namaz sunnats
for the last 2 rakats of the 4 sunnat namaz you can do them in any order
this is because the 4 rakat namaz sunnats are supposed to originally be...
asalaam aliakum
you are not allowed to read the quran without your wudu only if you want move it from on place to another you have to wash your hands and then pick it it
asalaam alaykum