How to actually buy a new Fellhoelter?

Hey guys - I've been lurking on the sub trying to figure out what sort of pen I'm interested in. So far, it seems like Fellhoelter's pens are the most interesting visually/ergonomically and I've been interested in trying to pick up one of their offerings. Trouble is, for the past few months since I've been active on the sub, I can't seem to ever catch stock being offered! Any advice? Am I doomed to negotiating a secondhand purchase?

I'm signed up on the site's newsletter and I also follow the shop account.