I'd like it so the person picks out their items, then can buy a gift basket where the options (or even a comment field) allow them to pick a color scheme and whatever else they want to instruct for their basket. Then I'd like the person to fill out their info and pick shipping.

But I want the gift basket to depend on the amount of items or dollar amount of the items to go in the basket since the bigger the basket, the more that goes into it. If needed, I could just add three baskets that cover a range and tell the customer to select A if their items total $0-25, etc. Even then, I'd still like the option to pop up after they select other items.

Any tips? Thank you!