Those are very potent mushrooms!
Don't go B+, it's alright, but there are better strains for different areas.
To start off you can buy a syringe or spore print offline, after that, you'll no longer need to buy them. Yields are almost always very small, unless you can get a casing or two flushing every week, than it's worth it.
What the hell kind of mix did you use? Manure+verm+BRF? It sounds like you got a few different methods confused on how to do it.
Manure is typically used in bulk growing in their own little climate controlled boxes for the most part. And Verm mixed with Brown rice flour is typically only used in PF cakes. You really made those more difficult than it should have been.
The dry layer of Verm, I'm assuming you're talking about the dry layer that should go on top of cakes? If so, it isn't really that necessary, you can use a bit of tyvek, or a coffee filter even at the top with the lid screwed over it. But even if it wasn't used, you really should be fine.
Go to a health store or organic store and buy some Rye grain/Rye berries, that's all you're going to need for the first step of growing. Buy a bag of Vermiculite and a bag of Peat moss or even coco coir, you will use this to make a casing layer.
Growing mushrooms is a few step process. Here's a basic run down.
Rinse your rye in the jars the night before you're going to sterlize.
Than what you have to do is sterlize, which includes pressure cooking the jars with the substrate in it.
Wait a few hours for jars to cool, and inoculate somewhere VERY STERILE! This is the one point where things can go really wrong, and pretty much the only point where you can mess up bad enough so you won't yield anything. IF you mess up anywhere else really, it's not a big deal, you may just grow smaller mushrooms or you may grow less, but messing up at this point you can contaminate.
Once inoculated they need to go into a dark incubator at 76-86 degrees (aim for 84). After 2 weeks or so of waiting all the rye should be white with mycellium growth. That's when you'll move on to casing.
Mix the peat moss and verm 50/50, with water too so it's wet. Sterilize this (you can microwave for 6 minutes or so) and wait for it to cool down in room temp. Get an aluminum foil pan, size can be any, depending on how much colonized substrate you're working with. For instance, let's say you're using Quart jars. Get a lasagna pan, fill the bottom with 1/2 the depth of the amount of colonized substrate you'd have. Put colonized substrate out over that than another layer about the same depth on top of the colonized substrate.
Once that is complete, put aluminum foil over the top, put it back into the incubator for two days. DO NOT let the white mycellium take over the top, if there's a shit load of white on top, it means the mycellium overlayed and you won't get any growth.
After the two days, put the pan, foil off of it into a terrarium.
Terrarium requirements: 99% humidity, 2 hours of light from any type of source(NO GROW LIGHTS NOTHING TOO BRIGHT THIS ISN'T A PLANT IT DOESN'T RELY ON PHOTOSYNTHESIS) and they need fresh air exchange.
You can build a very nice terrarium for less than 100 bucs out of a Martha Stewart clear closet with a cool mist humidifier and some types of shelves.
After about a week, you'll see pins, once it pins, they grow FAST! 3-5 days you'll have mature mushrooms.
Pick these, and air dry, DO NOT USE HEAT IT DESTROYS PSCILOCIBIN!
So, a basic run through, go to shroomery for more info, tired of typing.