Technique Extreme also do hires.
Was just looking at the rates a few weeks back and was surprised how reasonably priced it was. Alas I don't recall how much it was, or what boots they offered.
Hi there. Snell sport hire out B3s as well. Dont know how much they are but they certainly seemed to heve a large stock of hire boots. 42.50 for 6 days sounds a great price though.