As the concept states. Origin 145M. Swap the single bed into a T3 Med Bed. Push the interior back wall further back, so lose the interior 2cu. Gain 1 Jump seat, gun rack, medical cabinetry, and sink where the 2scu was. Keep the 135c cargo grid or swap it for a medic drone or make it big enough for a cryopod. (This is assuming that medic drones will be hovering T3 med beds that can grab people. Make it so the 135c cargo grid connects to the interior so the drone can deposit the patient inside.) Suit Locker? Widen the Door and ramp. Add Airshield to doorway. Downsize guns to Size 2s, it's an ambulance after all. Weewoo lights.