That said, I'm not sure I really understand the question. If you want to
make the trip VFR, don't bring charts, and be willing to wait out some
weather. Around here, in July, you won't have to wait long, maybe not even
a whole day.

If, on the other hand, you are considering flying the trip IFR, bring
charts. They are easy enough to get, they aren't expensive, so just get
them and don't worry about what the "odds" are that you'd need to use them.

I did order the "terminal charts" but when they came I realized they
do not include approaches. With the trip a week away, I'm just
wondering if its worth the $35 or so to rush out some approach plates
or if the odds are pretty good I won't need them.