I found this P-38 photo collection after my F-4A post; an excellent assortment of photos, many you have probably seen, but an awful lot that are new; all versions are presented, along with production numbers and other useful information. You will see many photos that show the neutral grey landing gear struts and doors, as well as a neat photo of the prototype P-38M night fighter in natural metal! I hope you enjoy looking at these.
Mike
http://ww2fighters.e-monsite.com/pages/lockheed-p-38-lightning.html