I bought a Safari snorkel off them recently, they quoted GBP175 for shipping. I added a decat pipe and an air filter to the order and the shipping cost stayed the same.
Emailing them is a little hit and miss, try sophie @ paddocketc. as well as tom @ paddocketc.
When I was going through my order, it was just after the blizzards and also Tom took some time off, so it was a bit disjointed, they did make an effort though.
Order was shipped quickly once we'd settled on content.