The Tetenal 2.5L kit is expensive and does not keep well. The developer is rather robust but the blix is NOT. Once it was already bad when I bought it and I live much closer to Germany than you. Unless you're pretty confident you'll use it quickly or not sure whether you'll continue printing I recommend to look for Kodak chemicals in 4x5L packages. Both dev and blix are split into four sets of 2 or 3 separate parts and are known to keep well. The cost of 20L of chemistry is less that 3 times the 2.5L kit.
Originally Posted by polyglot