I watched a video where someone used 40 blow darts and 40 gunpowder. Brought down a ton of supplies, life giving amulets, booster shots, gears, etc.
Made six attempts and got him below 10,000 health each time but dealing with the hands and running all the time..no luck, died or got very close to dying each time. The darts + gunpowder didn't kill him, only weakened.
Oh well, I'll try again when summer/autumn comes in 40-60 days.