So you don't mean the pattern of new guys asking for every aircraft listed in Wiki? 
Seriously, why 3 minor Zeke variants instead of the Ki-43? Not that we're getting the Oscar next, just curious.
I could easily ask for 3 ki-43... but you'll just dismiss it as 'minor', but minor changes made them more capable than previous variant.
here's how they parallel...
In early war: A6M2, Ki-43-I
mid war: A6M3, Ki-43-II
late war: A6M5, Ki-43-III