I reckon $1,000-$2,000 wholesale - it's a great name.
In NSW the NRMA stopped doing callout vehicle inspections (they still do them at their centres) which meant dozens of independent operators set up shop to fill the demand.
My advice would be to set up a lead generation model for these businesses.
At the time we registered vehiclecheck.com.au and put up a (embarassingly basic) website with an idea to do this. However your name is way better.