I would agree with your selection of basic OTC meds.
Sure, you can improvise in a pinch, but a nasty cut on your finger or hand is easy  enough to treat/dress with a dab of antibiotic ointment and a band-aid.  3 or 4 bandaids and the individual antibiotic foil packs weigh essentially nothing and I don't see a reason not to pack a few.  Blister treatment is also critical since your feet may be your only transportation.  Add a couple of 4X4 for larger wounds.
I have noticed a trend among kits that tends to minimize first aid and adds more "exotic" items such as snares, fishing kits etc.  I don't know about you, but while outdoors, I have gotten cut and scratched much more often than lost. <img src="/images/graemlins/wink.gif" alt="" />