Doctors Without Planets personnel often makes use of whatever assets are presents to assist during an emergency. During the Potox IV tidal force crisis, more than 50 "Sword" class interceptors were converted for medical use by volunteers and by the army to be used for evacuation and resupply.
The resulting vehicle, immediately nicknamed "Ploughshare" by the local population, could transport two medics and a patient.
I've been wanting to do a space ambulance since a while, but never had the minifigs to crew it.
I exhausted both my white and my red bricks to build this, so I guess this is about the biggest ship I can build with my collection. Consider it my SHIP ^__^