If you're going to build anything then you should build it according to a standard and a well-thought-out plan. 

Otherwise we can allow camping if the campers will take out the trash with them. Limit the number of campers to keep the aina in pristine condition. 

We don't want the trash build up that homeless settlements create. Also have campers bring in their own fuel to avoid cutting down the forest for the wood.

No more than 3 days on the same site to preserve the aina. All latrines should be well covered to avoid spreading disease.

With a well managed Campground we could house hundreds of the homeless and they could do the state a favor (for no camp fees) by keeping the invasive species in check. A good example is this Devil Weed I've heard of which is difficult to control because of the hundreds of thousands of seeds that are dispersed from the plants.

The homeless can cut down the strawberry guava and carry them to collection points for disposal. Ranger can kill the stunps.