heydo6,
What strain of mushrooms are you looking for? I have an extensive collection of spores , pm me .
40acres,
Here is a little tek you may find helpful too

Those are casing containers that hold one quart of Wbs each. They remain with their lids closed until the pins just start to touch the lids then you open them up(as you see here). To keep them from contaminating during fruiting, you place them in larger bins like these
Just wet the Perlite before you add it-To do that you just soak it really good and let it drain for about 10 minutes then add it to the bin. The wet Perlite will evaporate off the water and produce humidity at a relative 98-100%.
When you fan & mist, just open up one corner of the lid and wave your hand, or a clean piece of paper, at the opening and mist into it. Let the mist fall(like morning dew) on top of the casings.
Here is a straw casing that produced over 98 (cracker dry)grams of mushrooms on its first flush,

That was 989.52 grams wet!

In the harvest picture(one up from bottom) that casing is setting on the lid of the fruiting chamber-to give you a relative idea as to how big they are.
I can't find one of the bin itself. But, anyway you get the idea.
Doc