NJ used to allow 2 systems to read not ready if IIRC, its been a while. My car passed NJ every time with a tune, headers and ORY.
NJ Standards for Collector car status. Probably just easier to wait one year and do QQ tags.
There is a specific process to classify a vehicle as a collector vehicle. The standards and application process are described below.
Standards
Collector Vehicles must:
Be a limited production vehicle or a vehicle made in limited quantities.
Be less than 25 years old.
Not be registered as a historic vehicle or a street rod.
Not be driven more than 3,000 miles per year.
Be insured as a limited use collector vehicle.
The Collector Vehicle Status Fact Sheet contains more detailed information.
A vehicle classified as a collector vehicle can be qualified for exemption from safety and emission inspection after the application process is completed.
https://www.nj.gov/mvc/vehicletopics/collectveh.htm