My 2 cents based on sailing yacht deliveries.
Same as mentioned above - assume that nothing works.
Hand held
VHF;
EPIRB: basic tools, shackles, pipe clips;
epoxy paste; duct tape: plastic tapered
plug (to seal various diameters of hole/pipe: lengths of poly tube (emergency
fuel supply): one ring camper
stove; dry
food; tin mugs;
water gerry can; hand held
GPS: paper
charts; hand held
compass; almanac; local tide tables; ribbon
wind telltales:
lithium engine starter
battery (size of a mobile phone) which also charges USB kit; torch +
batteries; lighter gas powered solder iron; roll of
electrical wire; AVO meter: fuse wire: short lengths of line; roll of loo paper;
Check on board there is a bucket (bucket & chuckit) : a fuel jerry can (for
emergency fuel tank);
engine oil change kit ( I always change the
oil before setting off)
Bulky things like jerry cans and heavy tools I would buy locally if not on board but the rest would back pack.
Not all problems were with old boats.
We delivered a brand new cat back to factory that had been delivered to a
boat show by truck. The bottom of the
mast sported a bundle of wires. No nav
instruments that worked. There was no way of getting
water out of the tank. The engine controls were fitted upside down. Flat
batteries and no
charger. Got her
seaworthy after a few hours. A hose fell off the
hydraulic steering at the end of day one. We jury rigged
steering using the
saloon table leg as a tiller pulled by the
spinnaker sheets across the
cockpit. (Put it all back before we handed her back to let the yard puzzle it out!)
If there is a suspicion that the owner might not pay the balance of the fee (the profit) I would unscrew the most expensive bit of kit (usually the nav display) and hide it on board. Not theft you see but a bit of leverage in discussions. Only needed once. The rest of the time the deed was argued away as protecting their
gear from theft.
Never failed a
delivery once and usually arrived in a better and cleaner state than when I left.