Well then if the plan is to do a Pearl Harbor related story the first P-40 I'd try and get is Lewis Air Legends. Their P-40C is an accurate one that would have been present at the time of the attack and is also painted in Pearl Harbor markings. They also have an early F4F Wildcat that is equally accurate for 1941.
http://www.lewisairlegends.com/fighters/I'd also consider using the Texas Flying Legends Zero. There wildcat and x2 P-40s could be used too but would require repaints.
http://texasflyinglegends.org/index.php/warbirds/A B-17E (that would have been present at Pearl Harbor) would be tricky. Best case secaniro is wait until this B-17 is done and flying.
https://www.facebook.com/12595DesertRat/Or contract The Movie Memphis Belle which is up at the National Warplane Museum and is still owned by the Tallichet estate. It's a G backdated to an F that's pretty close looking to an E.
http://www.nationalwarplane.orgAuthentic looking PBY in Pearl Harbor markings will be tricky. There is one flying in similar markings in Greece by a group called Athenian Airlift Services.