Ahhh , I see a little better with what your trying to do. So my pm about it is a to complicated approach probably.
So instead of having a quest running to check for completed quests to add items. You could place an activatable item for the player to click on.
The item has a script attached that uses the "GetQuestCompleted" with "Enable" or "AddItem" when it returns 1 (true)
Which can reset itself for clicking after each script run. That way you wouldn't of had to put an "Enable" or "AddItem" at the end of all those quests you want to give trophies for upon their completion. If I'm understanding you correctly that is.
On the mouse over name of the clickable item ... just try to explain what it does briefly. And a further explanation in the mod readme if necessary .