You will eventually need to find The Purveyor in as this vendor sells Legendary Weapons you might be looking to acquire. Many vendors use their own special currency, and The Purveyor only accepts Scrips.
While other vendors in the Appalachia region accept Gold Bullions, this vendor is an outlier. Buying anything from Purveyor Murmrgh is kind of like playing the Lottery, as it uses a Gacha system for the secret crates the vendor sells.
But these containers will contain a random Legendary weapon; you can keep it or scrap it if you want. Originally, The Purveyor was in a different location, but she can now be found at a specific spot in Appalachia.
Purveyor Murmrgh is a mole miner, but she has no strong opinions of Vault Dwellers. She initially set up shop in the Berkeley Springs Station in the Mire, but since 's Wastelanders update, she has permanently relocated to the Rusty Pick in the Ash Heap region.
The Rusty Pick is a small bar south of Charleston, which now serves as The Purveyor's shop. The store also has a few benches so that players can easily scrap or craft items.