Product Kit Price and Discount Administration Overhead

Currently price for product kit is determined either by setting Total Price or by applying a discount to component prices.

With the first option, it can be confusing to someone to see a price listed for component products in the checkout screen if the component is a free item bundled with something else. That leads one to try to second option, discount each component that is "free" by 100%. But that causes high administrative overhead. Whenever the price of a component is modified, the discount is still frozen. So an administrator has to go and re-edit all the product kits which the component is a member of in order to change the discount to reflect the new price.

Two different modifications present themselves in order to both reduce this overhead and avoid being confusing.

Option 1: Accept percent discounts in the discount field.
Option 2: Add a checkbox to mark component as "free"/100% discount.

Not sure yet how much work is involved in either option. I have yet to dig into the code to see...