I've ordered recreational & medicinal drugs (weed & LSD) on Darknet sites without issue. Make sure the seller has good reviews and a decent quantity of them and chances are you'll be fine. Weed is a little bit of an issue with vacuum sealing since it stinks, but benzos shouldn't have a scent so unlikely to have it get intercepted. I'm planning to get my Benzos and antiemetic from a Darknet dealer and those two are the least of my concern.