I saw this VTOL drone in the flesh at the GeoData exhibition in London a couple of weeks back and was very impressed as it takes photogrammetric modelling flights to the realms of 1 hour in the sub £20k bracket.
This is a tool that is perfectly tailored to DEM mapping, farming and Urban mapping.
The skin is crash resilient but that should not be a problem as all flights are pre planned and Mapped.
Definitely worth further research and look at their website for further details. The link is below.