Future plans for work camping

Over the years of full time travel, we met a few workers that did something like your talking about. One fellow traveled to only KOA's and built the cabins they rent out. All the materials were delivered and he would build the unit in about a 2 week span. He said he got a free spot and a set amount per cabin. He told me he had about 2 years worth of work all around the country and he was having fun. Another guy was rebuilding picnic tables. Got free sites, and so much per table. He planed and sanded the wood, or replaced the boards as needed, sanded and painted the metal structure. I think I saw him do about 2 per day. The rv park owner moved the finished ones out and brought him in two more. I saw a local lumberyard truck pull in and unload all the materials that I assume were purchased by the rv park, but have no knowledge of that for sure. We were in that park for a week and he was working every day, and did a real nice job. He said to me he loved working and has his trip planned by where the next rv park could use him. Just a way to enjoy traveling and doing something you like to do anyway.