Think about ommiting something. Otherwise you might have to hurry and leave the impression that you´re not comfy with the subject of your presentation.
If you have 5 minutes for the whole presentation the ten essentials OR the PSK will be plenty. If you do the PSK , I´d suggest that you unpack it during the presentation. This draws attention to the item you´re going to talk about and increases the suspense. If you misjudged the required time, you can also leave some items in the box.
With ten items you´ll have 30 seconds (3 or 4 sentences?) - even less if you like have introduction and conclusion - for showing an item and telling about the use and the reasons why you carry it. 30 seconds is not exactly an ample timespan.
Presentations tend to go bad if you pack too much into them. If you´re inexpierenced, you should have a timed test run without audience.