You might find the cost of shipping isn't as bad as you think, but anything cheap will be by sea and take a long time. Also whilst they might offer to ship to the UK will that be a 240v model or will you need a voltage converter or new motor ?
Looking at the web site they mostly look like they've come out of the same factory as the Jet/Powermatic lathes.
I really can't see why you'd bother to import something like this when you can buy effectively the same thing from a reputable UK supplier with less trouble and delay. If you needed to send something back under warranty it would cost a fair bit and you might be without a working lathe for some time.