editing lore via marker

data modify entity @e[tag=dur,tag=INIT,limit=1] CustomName set value '[{"text":"Durability: "},{"score":{"name":"@s","objective":"hc.dur"}},{"text":"/"},{"score":{"name":".maxdamage","objective":"hc.dur"}}]'

data modify entity @s Inventory[{Slot:103b}].tag.display.Lore[-1] set from entity @e[type=marker,tag=dur,limit=1] CustomName

kill @e[type=marker,tag=dur]
``` im trying something like this but how do i do this