Dynamic Choice Elimination Form

I need an online submittable form with a choice eliminator. The form should allow users to select between two choices for an event and assign a unique value from a set range to that choice.

Requirements:
- Multiple events with unique value assignments.
- No duplicate values for selected events.
- Easily configurable.
- Exportable to Excel.

Ideal Skills and Experience:
- Proficiency in Google Forms or online form builders.
- Experience in creating customizable forms.
- Intermediate expertise in form logic and data export functionalities.