FE_Builder_GBA -- If you have any questions, attach report7z

You can easily edit my version to do that. Simply adjust the end durability you want to give the item based on player input using some conditionals. I feel like this makes it more complicated without much payoff, though you’re free to do as you wish with your time.

I would however instead suggest just using Tequila’s asm hack that optionally combines items when storing them.