Free: Contests & Raffles.
It really depends on where you go. Most of the time, I think it would be ok, but there are the times where you end up in a place where the only flat ground is 4' wide and it's a stretch to get that. I would be more worried about footprint than stakes, I think if you don't have good dirt you will have rocks, logs, trees or something to make it work.
For pitching on uneven ground, there is a really nice instruction video out there, I just saw it. I think it was on the Seek Outside website. Look for it, I will help if you can't find it.