IMO, it would go something like this, then. This is assuming you are actually car free, have a bike you wish to take.
Ask your work friend if he has a car he is willing to take. Next, look into train/bus to the location you want to go and consider a central camping spot that you can ride from and back to every day. I would probably consider ditching some of the equipment in that case.
Theoretically you could look into a "service" like entity to take you there and pick you up. Enterprise and some taxi/limo services offer things like this, but am sure the cost over that distance would be pretty obscene.
Rent a u-haul one way, twice, or a car.
These above recommendations (once again) go on the assumption that you own a bike and have some experience at carrying goods with you. With a bit of slimming down and creative thinking about the "cooler" situation (or a trailer), the rest could be packed on racks and panniers.