In many ways the development of eVTOLs re-visits that of the PC (which itself evolved into the smartphone), in that both the data and equipment are becoming integrated. So whereas you once had to build computers out of components and find out as you went along how to put them together ~ whereas now it is all on a plate ~ slowly the technology behind multicopters is beginning to be rationalised in the same way.
Which makes it easy for dummies like me and you. Accordingly here at the outset I've approached things in a scientific and disciplined manner, which is a personal first.
The above selection of motor, propeller and speed controller provide around 26 kilos of installed thrust at a throttle setting of 60% according to the data. Thrust settings of that sort are what are required to keep something 'in hand' with which to address the contingencies of both steering a trajectory as well as engine failure.
This amount of lift happily accords with what is broadly becoming an internationally recognised limit to the gross weight of drones before things get more complicated to register i.e. 25 kilos. This in turn means we can build a sizeable scale prototype, and subtracting whatever its airframe weighs from that figure yields a theoretical payload.
Budgeting for development ~ again a novelty for me ~ is key to progress, however, and so it pays to build the airframe prior to shelling out on the motors etc. Happily we can now do this, because having the diameter of the propellers we can refer to the post of 28th October so as to draft an outline of the drone itself.
