How would u convert this model :
Elven prince with armour of the gods, halbierd and vambraces of defence
Myself, im gonna try a pg model but just wanted to know what yall think for a cool model

PG champ would work well. Other than that, I would say get an old spearman chapion model and glue an axe to the side of his spear under the point.

Use the archer standard as the pole for the halberd, the pointing arm for the other arm, and a silver helm torso for the armour of the gods. Just model up the bracers a bit, that'll be the hardest part. Maybe using the little crescent moons on the archer sprue?