Not clear on what you are asking when you say scale it. But, what type of marketing do you have in place? Who is your target? Where are you finding them? Are you using Facebook ads? Are you participating in LinkedIn groups?

IF you have relationships formed, then the $4000 program is more easily "scaled". But, it's difficult to get that investment going if you are just beginning without any social proof. You may want to consider smaller introductory programs as well to give people a sense of you and your team.