[Script] Porting PokeEmerald's items icons to PokeRuby?

Hi! In PokeEmerald, they added thumbnails icons for all items in your bag as well as when you go shopping, and even gives you the ability to move items from Pokémon in the PC (Also present in FRLG). My big question is, can this script be ported to PokeRuby? I'm the kind of guy who prefer the original versions rather than the 3rd one with changes. If it can't, then I'll focus on PokeEmerald instead. Many thanks!