Get them going on some hardwood chips. You can mix grain or liquid culture with soaked woodchips for that purpose. As soon as you have a decent amount of mycelium, its grows pretty fast and aggressive and you can also stop working sterile, since nothing will grow faster on wood than the azur! You will have many kg of colonized wood in about a year and never have any shortage after reaching a certain amount. Then just make growbeds in shady and moist places with much mycelium and fresh wood and wait for autumn.
If you dedicate yourself for two or three years cultivating this mushroom, you will have more fresh shrooms than you can possibly use.
Good luck with the little fella!
If you have any more questions, just ask
