small jets, blanket for europe you are close to 200 airframes, otherwise positioning would offset the profits very quickly. 12 aircrafts is the BEP for optimum crew ratio.
But then the uncontrollable factor will be the crews, after the initial Yipee !! the nature of the pilot will make the flying on a small jet a chore, and the churn rate will sky-rise, offsetting one more time the profits.
All in all, small jets, small ops or nothing...You cannot "dominate" the market with small jets..
But you can have a go...