You never know, some people have horrible experiences at dickson, some don't I took my 32 over dickson to get rego from nsw to act. They passed it, after I put a rego muffler on. I was defected years later for too loud an exhaust, took it over dickson again, they found that my coilovers were leaking, but didn't say boo about the engine, mind you it's an r32 rb25de thats been turboed.
So it's really luck of the draw I think. You might be okay, or they may decide to pick over every little thing.