OTOH, the preferred holders have been really quiet. You might be able to take the company without their consent, and stiff them like boogaloo has for the past several years. I think I mentioned that angle a year ago.
My Father always said: "It's better to owe it to you than cheat you out of it." Just carry the debt. Renegotiate it, etc. They already lost, they don't have much to gain by opposing a good plan. Come up with a good plan.