Bill, that second link is the new owners based in Scotland. You won't be able to get it direct as they can't post enamels overseas. I am not sure why, but that battlefleet models is not on there Stockists list. But check to see if these guys have it, i am not sure what range that paint you want is in.
http://www.hbhobbies.com/
And warship hobbies in the US also do them, but only via there E-Bay site.
http://stores.ebay.com/warship-hobbies
I am a Norfolk man and i glory in being so
On the bench: Airfix 1/72nd Harrier GR.3/Fujimi 1/72nd Ju 87D-3