Searched high and low, I know it's been cheaper before, but it's the cheapest I can find it currently, in case anyone is still looking! Delivery is £3.95 but I'm not sure if there are other cheaper/free options as I didn't explore it further. Was a hard pill to swallow paying this for Lego, but my sons face will make up for it. I just clicked and grimaced! 7% cash back on Quidco too :) So effectively £93.23 delivered.
Currently have 20% off all toys I believe so might be worth having a rummage to save more to cover postage.
Hope it helps someone!