ironicley the japanese seemed to have gone the wrong way with maintance as the early fighters(zero and ki-43) were easy to maintain but the later ones (ki-84 and n1k)were a lot harder which although a lot more capable their effectivness suffered.the ki-100 probably was more effective as the airframe was in comparason fairly simple and with the help of a well known engine used by both services duyring most of the war it would have been and advantage over both the alternate fighters from a ground crew point of view (the ki-100 was a ki-61 tony airframe with mitsubishi kinsei radial) .
the ki-84 iirc was designed from the start to have a strike capabilty (it was first encounted on an anti shipping mission of the coast of the phillipines.
paul
ps beaufigher's could it all anti shipping ,nighfighter ,reconisence strikefighter and they came home
