Engine sitting for 10 years: should it be oil primed first?

[In The Ten Ring]

I commented on this other thread, where his engine sat for 15 years. My dad (original truck owner) is dead set against me priming my engine to lubricate before starting.

He reasons that "all the oil drips down overnight anyway" and that it will "take 15 minutes for my truck to start anyway, priming isn't necessary."

Also he feels that getting into the distributor will screw up the timing and I'll never get it started then.

What say you guys?