The drawings of CLPs show a number of errors.
The location of the louvred panels are definitely wrong on most of the orange locomotives, either ARG or G&WA.
The drawings illustrating CLP7, CLP8 (in ARG) and CLP 16 (in G&WA) show louvred panels in the wrong locactions.
All CLPs were built with the side louvred panels in the same place as the CLFs.
The CLFs were never altered.
All CLPs had the louvred panels moved some with all three at the back, some with two at the back and one in front of the engine room door.
These changes were made while the locomotives were working passenger trains, so while they were in green, yellow and silver.
The panels were moved to reduce overheating of the diesel generator sets at the rear of the locomotive.
Looking at the prototype photographs, it can be seen that:
CLP 13 and CLP 14 had the "1+2 at rear" arrangement
CLP 12, CLP 16 and CLP 17 had the "3 at rear" arrangement
All CLPs had one of these two grille layouts in all orange and subsequent liveries.
So the drawings representing the models of
CLP7 and CLP 8 in ARG orange
CLP 16 in GWA orange
CLP 12 in SSR grey
Are all incorrect simply based on the prototype photos accompanying the drawings.
They need to do better than that if they want to claim accuracy....