I always liked a lot Roy "RCS" Chaffin's B25 Mitchell (roychaffin.com), but I'm a bit annoyed by the cumbersome gauge registration system. So I made for myself a simpler panel based on Sim Outhouse Douglas A-26 Invader (by Milton Schupe, John Terrell, et. al.), specifically the gauge CAB file made by Real_Old_Salt (ROSA26.CAB):
Here is a test panel for you to play with (rename to panel.cfg). I guess I should ask Roy what he thinks about it... If for some reason this is problematic, I'll remove it.