Yes. eSIMAdvice currently lists 17 AlpineSIM Dominica plans.
The lowest displayed AlpineSIM Dominica plan is Regional · 25 countries · 500 MB · 1 day · 5G · Caribbean, at $3.35.
Dominica · 10 GB · 1 day · 4G is the current best-value match by displayed price per GB: $4.02/GB ($40.23 in total).
Yes. Eligible displayed prices already include the active AFFINCO coupon where the provider rule applies.