Wow, I'd have bitten your hand off for that last week Brucklay. Unfortunately I just bought one new.
For reference, I paid £200 for the same model but WITHOUT the water pump, so Brucklay is correct with £250 ish new. WBF - different models I'm afraid - the Brinsea range is pretty confusing, I have to say, with choices between auto and manual turn, digital or glass thermometer, and manual or auto humidity. Multiply all that up and you have about six models to choose from, all at wildly different prices!!