As General Melchett's excellent test shot build of the new-tool Airfix B-25C/D kit is bound to get the modeling juices flowing, I found a site l think will be useful for any of you planning to build one; it has a good overview of all the variants, as well as detail differences, usage by the various allied nations that flew them, as well as production run serials. I hope this will be helpful! (Still waiting for my two to arrive!)
Mike
https://www.skytamer.com/North_American_Mitchell_II.html
BTW General- another great model! Thanks for the heads-up on the undercart and stabilizer issues! Hope my canopies don't have the same flow marks...here we go, again!