Hickey knows basic repair skills due to his job on Terror (he was caulker's mate). He'll be rubbish at anything specialized (my man has no idea what a circuit is) but he'll be useful at basic carpentry and insulation work.

He is also 100% not going to be buying anything for the project if he can help it. This is his money, thank you very much, he's saving up for that trip to Maui.