Selling Product or product/service, only charge shipping on product only - how?

[Lendon]

I am trying to set up a store that sells 2 types of T shirts:
- existing design
- custom embroidery

For existing design without custom embroidery, customer pays shipping. If the customer wants a custom-embroidered shirt, I need to know the content (text usually). Also, for the custom embroidery option the shipping cost is included in the price of the shirt and embroidery work. The customer may order any combination - one shirt only (existing design) and/or another one customized in the same order.

I need help with 3 questions:
- how to only charge for shipping for existing designed shirts, regardless of if a custom embroidery shirt is ordered or not
- how to display the embroidery "fonts"
- how to create the text boxes where the customer can
- type what they want embroidered
- indicate (via typing initials or a check box) that they proofread what they typed.

any and all help is greatly appreciated!