If you take for example 1 of each type
so not the whole series of BF109's
just one model (preferbally the best)
just make a list of the plane we mostly use
1x spitfire
1x BF109 (A6 or the F4 serie)
1x FW190
1x LA5
1x ZERO
1x P40
etc etc
also dont make them dificult to make dowly
just keep it simple a nice color skin do all planes in the same color
with perhaps Subsim.com logo on both wings (top part)
and SAS on the side of the plane (SAS - SubSim Air Squadron)