Yes, the VIN rule is gone. Since you have a E36 2-door model (not the ti) you may choose to do an engine swap to any other E36 model such as the 2.5l or 2.8l and run in ITS or ITR. Also be sure to change all other required parts to match the new model. Some of those will be improvements like larger brakes and rotors, some may be less advantagous. But when finished the car must be exaclty like the 325is or 328is you claim it to be.

And if you want to stuff something larger like a 3.0l or 3.2l from an E36 M3 or E46 330, then it would run in ITE in most regions.