"This is an area that is all about numbers.
"It is a real challenge for the Kiwis because, in New Zealand, riders generally just have to show up to race but, in Europe and at GP level, there are huge fields and, if a rider is not fast at qualifying, he will miss out."
Townley has big hopes for Scott, who has been competing in Europe, while youngster Connolly is a newcomer to the grade.
"My expectations are high for Hayden too," said Townley.
"He is riding well at the moment and he is one of the older riders in the class.
"This event could be a great stepping stone to a Grand Prix career and it's really all in their own hands now."
Back in March, Smith finished fourth overall in his debut season in the MX2 class (250cc) of the NZ Motocross championships, having previously been the 2017 national champion in the 125cc class.