well as you may already know the Pup went from 81-87 over here in NA. I did a quick search for the Holden Rodeo and came back with this 1983 variety:
from this pic, the Rodeo is EXACTLY the same body style as my 84 Isuzu Pup. The Chevy Luv of the 1981 vintage shared the same body style as above, 80 and earlier luvs were a diffrent body style.
The pup is no longer being sold in NA. However Isuzu is still (not for long) selling "trucks" under the name of Hombre and it is EXACTLY the same truck, engine, chassis, cab, bed as the Chevrolet S-10. The only diffrences are the front end sheet metal....
hope that helps,
Jason