yes, Trumpeter 1:48 H-81A-2 (AVG) I feel like I am too obsessive about this, bet a lot of modelers share this trait

have you built this plane? i would like to use as reference.
No I haven't built the kit. My scale is the 1/72. However I'm not sure if the kit is in my stash still waiting for assembling.
OK. If you want, try to find and give a try to :
if you are going to continue the AVG series ... these two first Bronco kits contain the decal sheets with the shark jaws markings for each of 6 marking options coming with the kits. So you may choose, fit and use one of them to finish the Trumpeter one. However the kits may be quite expensive.
Bronco FB4009 Curtiss Hawk 81-A2 AVG - x6 AVG decal markings
Bronco FB4006 Curtiss P-40C (Hawk 81-A2) AVG "Flying Tigers" - x6 AVG decal markings
Bronco FB4007 Curtiss Mk.IIB Tomahawk (P-40C) - x6 decal markings for the RAF/RAAF Tomahawks including the ETO, N.Africa and Egipt.
Bronco FB4008 Curtiss P-40C Warhawk Fighter US Army Air Force, Pearl Harbor and other theatre - x7 ( 6 USA markings +1 AVG )
The cheaper alternative may be the Airfix kits. Both of them come with two decal markings for each kit. The first one with the 2x RAF markings while the second one with the Pearl Harbour one and the AVG kite. If you don't want the another AVG model you may use its shark jaws for finishing of the Trumpeter model while the Airfix model may be completed as the Pearl Harbour plane.
Airfix 05133 Curtiss Tomahawk Mk.II x 2 ( RAF ETO + N.Africa)
Airfix 05130A Curtiss P-40B Warhawk x2 ( Pearl Harbour + AVG )