It is routine all over. Construction is always a game of moving people and equipment where the work is. There are a lot of people in construction who never work in the same city for more than a year, they just live in a local hotel and move the crane as needed.
I suspect this is cheaper than many projects just because the work is consistent - once you have the canals covered you keep a crew around to repair/replace them. That is you will need one crew full time within 2 hours of some small town so you hire someone who is willing to live in that small town (they get to go home to their family every night unlike the construction crew above working in a different city every year)
Makes no difference. You schedule the crane when you need it. Just make sure there's enough to do that it's worthwhile for the crane to come out for the day's work.
Jordan Harris, once a Virgin Records executive who had a hand in turning acts like Paula Abdul and The Smashing Pumpkins into household names, now serves as co-founder and CEO of Solar Aquagrid. He says the $20 million Project Nexus has done much more than serve as simple proof of concept.
Almost anything is possible with enough money.