I usually prime the pump with a drill or pack the oil pump with grease and just fire it up, kinda too late if it's already in there now. Some say assembly lube is good enough and just crank it with no fire/fuel for a bit first, some just start it right up.

Just did a BSE on my cousins car due to a spun BS bearing a week ago and did the grease packing method, had oil at the head within seconds, just started it directly.