Ok..Here goes.... eek
A lot of your questions are personal taste and depend on what you want to conquer with your X. Use the search function as there are TONS of ideas, pros and cons..etc... to all of your questions.Read read read..!!! As for the doors...Yes they come off, as do all doors. They are NOT made to come off and on and off again easily like some other brands. You COULD leave them off if you are using your X in only nice weather.. Your BEST bet is to join one of the clubs in your area (Scroll down to the club arena and look around)in order to learn the tricks of the trade so to speak! cool