Hmmm... kinda hard, but you can set up the variable that creates the quantity box in the free form logic so that it becomes a hidden form field.
Then, in the cart footers, remove the edit quantity button.
If ordering only 1 per product does not apply to all products, I'm not sure what you can do there...
If these are one of a kind items, you might consider a premier pro membership so that you can utilize inventory control.
HTH!
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God Bless!
Bonnie - AgoraCart Moderator
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