I don´t download a 4.6MBytes picture that easily could be reduced to 40kBytes without losing any thread related informaton.
Tools to do so are on every PC, every cell phone and even online.
Will you be doing this with a spice simulation ? An excellent way
of doing this. You will need spice models for the diodes, mosfets,
L and C if you can get them.
Simetrix, LTC Spice, Cadence Pspice a few of the choices.
Current is variable and so is efficiency. Usually a graph of
eff% vs load and line is given.
Component selection would proceed from next level
assembly V, I ranges, what customer demands for
those plus efficiency and dynamic attributes. Or what
you mean to sell (some of) them on.