I'm placing an order for items I can't get in the United States but can get internationally. Who do you recommend buying from?

The items are the Rorher-Klinger erka-rapid ink reservoir, Rorher-Klinger Leipziger Schwarz ink, and Pelikan 4001 Blue/Black Ink.

The Writing Desk (U.K.) $30.69, Pure Pens (U.K.) $39.11, Seitz-Global (Germany) $25.63 - 10% and Stilo & Stile (Italy) $31.88.

My question is twofold. First, what about shipping from these different countries, esp. with Brexit? Second, what about the personalities of these different dealers? Do you like dealing with them?