All I will say is, you probably want more options on the upper end (>50k) because of how many people have gotten rich on this rally

To be considered "Rich on this rally" you need to realize those profits.
That said, I think the USD/EUR exposure should be the initial investment since MOST will not be so rich when the house of cards comes tumbling down
By your definition, my "exposure" is negative, while by a normal person's definition, my exposure is in the 5-10k range.