Delivery box for VTOL fixed wing

To realized long-distance delivery, we designed one payload box for VTOL fixed-wing FW320. It can be mounted on the bottom of the fuselage. The bullet shape gives it less wind resistance. One side hatch for easy loading and unloading stuff, such as emergency medicine, blood, relief supplies, etc. Still, we want to optimize it, including materials, mounting and open mechanism. Any suggestion is welcome.