You missed:
tools. Such as a Leatherman all-purpose tool. You got all these parts, no way to install them.
Small bullet blocks. We dropped a mast one time and with the use of a bullet block hung on the bridle, and line tied from the forestay, run thru the block and back to the jib sheets we were able to restep the mast ON THE WATER.
Rather than carrying extra shrouds &c. a better idea is to CHECK YOUR EQUIPMENT FREQUENTLY and REPLACE RIGGING OFTEN. Waxing the rigging offers extra protection...
sea ya
tami