ROM Hack [REQUEST] Fire Emblem Awakening simple romhack

[FrozenDragon150]

Hello, I've been searching tutorials about how to do this myself, but I can't make heads or tails of them :/

So, I'd like to request a hack that makes unique or legendary weapons have infinite durability, just that.

For reference, legendary or unique weapons are the following:
Missiletainn
Sol
Amatsu
Mercurius
Tyrfing
Balmung
Mystletainn
Sol Katti
Ragnell
Luna
Gradivus
Gae Bolg
Gungnir
Vengeance
Wolf Berg
Haunteclere
Helswath
Armads
Astra
Parthia
Yewfelle
Nidhogg
Double Bow
Valflame
Mjolnir
Excalibur
Forseti
Book of Naga
Goetia
Goddess Staff

Also, I had put this on other topic, but I think here it would garner more attention.

Could someone port this code from EUR to USA?

Weapon Mastery
B3CF2100 00000000
C0000000 00000044
100000BE 00005A5A
000000C0 5A5A5A5A
6000000C 00000000
B000000C 00000000
D2000000 00000000

Thanks in advance!