If you want to go "full tilt into sales mode" (your words) hire a professional sales person, pay them a tiny salary and very decent commission on completed deal

If you want to go "full tilt into sales mode" (your words) hire a professional sales person, pay them a tiny salary and very decent commission on completed deals. Anybody who doesn't see themselves as a sales person is simply NOT a sales person ! True sales professionals are proud to be professional and are motivated to be successful selling an excellent product. I presume that you MVP demonstrates that your product is truly excellent.