Only can tell if it sounds good is by actual trial.
The 1x10 will get twice the power that the 2x10 gets per driver, making it a poor plan overall. You could take only the 2x10, turn it up and be very near as loud before it breaks up.
You might be thinking 210 + 110 equals 310, nearly as loud as 410, you'd be dead wrong.
Team Trace Elliot #1, IWNBARMPB Prezident, Mediocre Bassist #399, Old Basstard #86, PBBBC #2