First off, nice job working this out on your own so far!
I would suggest that you make the BOS sub a little more generic so that you can pass it the ID of the item you would like to target, so for example "Gosub BOS %Goldtypes" or "Gosub BOS %KitTypes", etc. That way you can use the same sub in any script you want to put it into

That's not what you asked though so as for your question, you'll need to add "set #ltargetkind 1" in there for starters. Also, HAG is the ItemType, not ItemID. You should set the LtargetID to your #findID.
Just a couple other "constructive" thoughts, 5 seconds is a pretty long timer for that action unless you are playing with extreme lag. You can certainly keep it that long but definitely not necessary. Also, an If statement that has only one line in the action doesn't require {} - again, you can definitely keep them there, some people like doing that just as a standard, but you don't have to. If there's more than one line you need the {}.
Keep working it!
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