I'm sorry MutantKid, I've no idea. Anyone from Northisle?
For anyone else who may refer to "current" prices posted anywhere: Prices for all things do change over time, sometimes very quickly and the economies on different servers may (or may not) be wildly different from those on your own. Unless you get confirmation 'at home' all older posts or posts 'from away' will reliably tell you is what a price was in a given place at a set point in time.
And many thanks everyone, I'm very glad the [Guide] is proving useful.