The transformation, including modified Khee-Kha Art Product resin floats and an Arctic Decals set is completed.
This plane operated on both, wheels and floats for the Tokyo Koku KK, transporting passengers.
The step-by-step construction article can be seen here:
https://wingsofintent.blogspot.com/2018/02/civil-mitsubishi-k3m-ms-1-az-model.html
This seaplane civil version implies a number of modifications described in the construction article, that include -but are not limited to- reshaping and reposition of windows, deletion of military features, correction of kit's defects, addition of floats and involved struts, new home-modified engine and propeller, slight correction of elevators and ailerons, new interior, new set of civil marks and many small additional details (radiator, top nose louvers, Pitots, etc.)
As explained in the construction posting, the inspiration came from the Arawasi blog (link in the same const. posting). Thanks to George Eleftheriou and his contacts for providing needed material to build a more accurate model.