To quote the sales brochure (Publication No. NEL.230) 10/52/27:
Right or left-hand drive. Van complete in priming. Van in K.D.
Chassis only (built-up) with or without front end assembly.
Chassis only (K.D.) with or without front end assembly.
OPTIONAL EXTRAS AT ADDITIONAL COST
Exterior paint finish in wither red, blue or green.
Chromium-plated bumper bars (full-width front, corner-type rear).
So it looks like van were in primer unless you paid extra for paint.
K.D. stands for 'Knocked Down'. When imported cars and vans arrived in
Australia, they were always listed as PKD or CKD — completely knocked
down or partially knocked down.