Hey dude, love this script but may have noticed a few items missing:
It doesn't seem to recognise a Mithril Crossbow, in-game it's name is "Mith Crossbow". Maybe the difference in naming has something to do with that?
Also the following items were left in my "infinity" tab:
Clay
Damaged Book (i.e. the god books)
Supercompost
Machete
Lockpick
Monkey bones
Redberry pie
Spice
Blackjack
Mort myre fungus
Silver sickle (b)
Wolfbane
Silverlight
Ring of charos (a)
Don't know if these are covered but wanted to let you know.