(Also Toyota Lexcen XX, XX series)
Gregorys covers all series from VN to VS. It covers both the V6 and V8 and includes the VQ Statesman, and the VN, VR and VS Utility. It does not cover the [supercharged V6 engine.
Haynes has similar coverage to the Gregory's although it does not mention the Utility. Note that it does not cover the factory LPG or supercharged V6 engines.
Ellery had two manuals, one covering VN and VP and the other VR and VS. Both manuals cover V6 and V8 engines, but not the supercharged V6. They cover all variants including Statesman, Utility and HSV models.
Factory manuals are mostly now out of print. The VN manual set consisted of eleven volumes plus supplements for Statesman and Utility models and later updates. The VP, VR and VS manual sets were also similar large multi volume sets with supplements.
The Computer Outpost
PO Box 87
Hazelbrook NSW 2779, Australia