1. First, find a barrel of gunpowder.
2. With a barrel in your hands, get close to any shipwright.
3. In the 1st line’s script, put the name of this shipwright.
4. Use the script and wait 10 seconds

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Your script:
local shipwrightName = "Elgfrothi" -- Change name to the town's shipwright name here
local args = {[1] = "Sell", [2] = workspace.NPCs[shipwrightName][shipwrightName]}
for i = 1, 9999 do
game:GetService("ReplicatedStorage").RS.Remotes.Misc.Carry:FireServer(unpack(args))
end