Some bright people will truck in dozens or hundreds of single- and double-wides, find a way to hook them up to electricity and water, and house guys many guys in each so as to make an enormous profit. Bus them to work, bus them back, provide them with food and some entertainment at night. The construction companies will pay for it - the same way that the oil companies did when the fracking boom started.
I wish that I had the money to buy a trainload of single-wides - I’d make a fortune.
I know. Am a little picky, not into sleeping in a bunk house with 20 guys. Usually sell and run projects to completion or end up running a company’s production overall. Don’t generally do the physical labor any more, although with the lack of craftsman, have had to do more stuff directly in recent years to get the results that I expect. Have worked on too many high-end projects over the last 20+ years to put up with a bunch of half arse jack legs.