Custom Race: Adventure Dragon

[Godbahamut]

http://dungeons.wikia.com/wiki/Adventure_Dragon_(3.5e_Race)

Now, I've created races and classes before but this'll be my biggest undertaking yet. Is this race even possible to be built as a single race or does it have to be built as multiple races is my question?

 

[Sendric]

It would not "have" to be done as multiple races. You could use either a feat chooser or an adjustment to select which color your Dragon Adventurer is.