Duckbill has jumpseats and also a cargo extractor to pull the hot air out. AC may not be fantastic getting there but it at least exists. Just like the llv, not gonna be seeing a lot, but both of you can get up and have a boxing match if it becomes necessary. Best outcome is closing the corridoor and locking them away-- No idea if the Platypus has the capability of having a jump seat installed like an LLV.
Your liability. Have an injury, you might get sued.Can I request to use my own Personal Vehicle? Or am I mandated to use an LLV with the extra seat? I would prefer to always deliver mail from my Personal Vehicle. I am not sure what right we have to remain in our personal vehicles.