Guardian Integration Questions

How will the PAC fee to the client be charged and can we set a threshold for the charge to be applied? i.e. only charge the fee if the service fee is less than $1000

What is the plan for merchant fees. Will they be included in the service fees like a modifier or be a separate line item that is visible on the order form and invoice?

Does Guardian have a multiple payment option in addition to PAC? i.e. spread your total fee over 4 equal payments