MGB is in ITB but only from '68-'80, this one is a '63.

Uh, you should know this but e-30 chassis is '85-'91 so it is (no debate) ST legal. I remember reading the Road&Track where the e-30 was introduced, with the Big USDM aluminum bumper bar up front. I know you think your car's vintage, but when they still don't let the 1st gen Rx-7 run it's not.