Nathan--
If the A-27 is the AAC's designation for the light-bomber versions of the Texan series, we had one of those up here in Canada--the prototype and sales demonstrator NA-44. It spent most of the war as a high-powered "hack" and aerobatic proficiency trainer for senior officers at the Central Flying School at Trenton. RCAF serial was 3344. The NA-44 survived the war but vanished circa 1947 from storage. (BTW, the RCAF also had the NA-26 prototype, which essentially was the very first Texan. It crashed during the war.)
With the designed-in interchangeability of parts between different Texan series types, replicating the NA-44 wouldn't be terribly tough (if of course your budget were robust enough!). SNJ-2 airframe, Harvard II canopy, Wirraway wings, and an R1820 up front. That'd be fairly close...
S.
(PS, see you joined WIX on my 40th birthday. How nice of you...

)