Heres what I do with dried peruvian torch:
Get some high proof rubbing alcohol and some glass mason jars. put all the powder and as much alcohol that can fit, let sit, shake occasionally. YOu should see the powder and the alcohol seperate, depending on the potency of the cactus the liquid should be dark dark green, almost black. Pour off the alcohol, put fresh alcohol , repeat until the liquid gets pretty much clear(or close to it). Then evaporate off the alcohol(outside with a fan works good). You should be left with a black oily gunk, encapsulate and enjoy.
If what you have is real peyote the 100g should be at least two doses. Good luck