Avgas Purchase in Scotland

[bvgs]

Hi all, was wondering if anyone can direct me to a company who would deliver around 1000litre + of Avgas to my farm? I normally get Air BP to do this but am getting fed up with their £28.00 PER DRUM delivery charge? If there is a company please let me know and will they have any problem filling the drums(6) or would they demand that it had to be a bowser? Finally what price should I expect to pay? Thanks. My location is South Lanarkshire if that helps any.