I'm going to bring the family to Harpers Ferry for the kickoff weekend, and need recommendations for camping nearby.

Here's my seemingly best options so far:

HI Harpers Ferry (Knoxville, MD) -- $10 per person/night

Harpers Ferry KOA campground -- $68 for 2 night minimum with BOGO deal (sleeps 6) -- $6 more for water/electricity

Harpers Ferry Campground -- $34/site (only one tent, 2 adults + 2 dependent children)

Any recommendations (including indications of where thru-hikers are staying) would be appreciated.

Also, if someone needs a ride from DC Amtrak, or DCA, BWI, or IAD airports, we may be able to help, especially early morning on the May 2nd if we camp only one night. Since this is a kickoff event, I assume that my gear would be the smelliest of the lot...