for the boat.
tools... small tool kit .. pliars, little wrenches and screwdrivers..hammer...prop nut wrench.
spare pull cord
plugs & plug wrench
spare drain plug.
duct tape.
wire and spare fuses, navigation light bulbs.
TECH STEEL...made by northland part # 16002 epoxy putty ,will fix a tear or a big enough leak
in about 5 minutes about 6.00$ per tube. it's saved the day for me twice now.
and yer emergency kit.
Trailer;
i bring a spare hub, pre- packed with grease.. costs 28.00 $ @ any Benson comes with all you need to change on the side of the road.
Spare Tire ..and matching lug wrench.
hydraulic 1 ton jack.. ..
bulbs.
piece of 2x8 to rest the jack on .
portable compressor..
...you said "S" hooks on the safety chains,, i'd replace them with a clevis ..
cross yer safetychains this acts as a cradle and prevents the trailer from nosediving into the pavement in the event of it falling off the ball.
good luck...happy fishin'