Hijet 1.3 efi water pump replacement ?

Hi, I have a 2001 Hijet that has is overheating and I have found a noisy hard to turn water pump, which I hope is the culprit. I am looking for some advice on the best brand, as there seems to be a large range in price and brands. The one Autodoc is recommending is the Ridex one but i feel like £27 sounds too good to be true.

Any help and advice is much appreciated.

Many thanks

Graham