Without going into a long diatribe about currency exchange, international trade exchange rates, taxes, tariffs, and economies of scale, if the man says it's a BSO in the Isles, then HE probably knows what he is talking about.
Forget about the cost, and get on with the test.

You might want to check into the SS/FG forums and look for recommedations on hub and chain maintenance.
IIRC your drive side rear hub bearings will need more attention than the rest of the hub bearings.