Certainly a solution as is the Israeli 8 pack of surface to surface missiles.
How do you procure these? What is it going to cost? How do you find trained operators? How do you train new operators?
105mm is ridiculously common and cheap to manufacture. The Project can have a range in a western State with a manufacturing license for international sales.
There is a company ATK, right here in Colorado.
http://www.orbitalatk.com/defense-sy...ament-systems/