It might be able to make the trip from Boston or JFK. Again however there are a lot of issues. I don't think the route would be considered if they could not make it departing from a wet runway. I am also not sure the ticket yield required could be met. I had some CS100 numbers and will look for them.
On the cost if AirBVI were to purchase a few Delta is rumored to have paid 22 to 24 million each. The AVRO used value is probably not more then 5 million and probably close to 3. Big difference.