This is on sale all the time- and a good basis to start with
the little red pack is good to organize stuff too. i've pulled out a bunch of stuff to our bigger plastic car kits, and put in some extra splints, bigger tape, larger wrap etc... I also have some stronger medicine like 4 oxycodone etc.
+1 on the kotex. I also have 2 super small ob tampons. Great for nasty broken noses bleading profusely.