Nitro too! Well I assume so as people always refer to nitro as lacquer. And vintage mustangs where made from poplar too, never alder. Also mahogany where the two main woods used. They used ash too (in the 70's for natural finishes only) IIRC. However poplar was the staple of mustangs.
There was never many changes needed on Jap mustangs to make them vintage correct in the beginning, this is a start.
I wonder if they are vintage correct with shielding.