There is no quick and dirty way to start producing massive flushes from the start.
The fastest way to get lots of mushrooms (of any kind) is to use bulk substrates,
inoculated with a select strain from a clone which has evinced quick colonization
as well as quick fruiting capabilities, and of course huge returns. You'd need
a huge pressure cooker (well, probably an autoclave), and a warehouse ::grin::
To be honest, there is no quick and dirty way to start producing massive
flushes from the start.
But, following closely to published teks and the sage advice of many posters here
at the Shroomery, you will be well on your way to cultivation.
PS This website does NOT condone the sale of mushrooms - so asking questions how
to become a cash cropper will, at best, get ignored (and at worst, get you flamed
an banned).
Save yourself the trouble :)