I can think of about a hundred different ways for a stretcher to collide with a prop, most of which revolve around carelessness or lack of knowledge/training/awareness in the complexities of an aeromedical operation. Wonder whether we'll see an ATSB report........
The Qld RFDS system with the standard doors seems to work OK. Bariatric patients are becoming the norm rather than the exception these days. I believe that Qld is buying some new Kingairs with the same lift-free heavyweight-capable loading system as NSW.