Tom, I would suggest increasing the # of water purification tablets. A small whistle is a good addition. I carry a whistle and mirror on a "breakaway" neck lanyard under my clothing AND a small whistle and mirror in my PSK. I assume the large hook is for a gaff. You need to scribe a groove and secure with a small nail through the eye and finish with lashing. Include a small nail for this use. Buillion cubes are virtually all salt. You can delete it or the salt. Small multi tool folders of SAK type are nice but a little fragile. An option would be the small CRKT locking folders. Finally a crib sheet ( check out Bill Vans effort in a recent post) and some paper and small pencil or pen insert will have you in better shape than many.