I remember last year I bought 3 syringes of 3 different type of specific spores obviously the ones you want haha but like cannabis strains.
Cost me 25$ after shipping, bought them from Canada took about 2 weeks shipping and they worked great! Made my brown rice patties and injected my spores but unfortunately I half assed my fruiting chamber and my patties got infected and had to toss them all out.
I actually had shrooms going haha it was really cool I only did it as an experiment. I can try and find out where I got them again if you would like?