I've shopped around and this seems to be the best price. I'm budgetting on £20 with P&P. I'll need a new thermometer, too.
I'm also thinking, we just don't have the room at home to do enlargements, so I'm going to compromise and get digital enlargements done. I can seek out somewhere to do proper wet darkroom prints in due course: I have, as they used to say in the films, the negatives.