The cheapest I have found so far is £50 for two 1000L containers, but with
£53 delivery.

Does anyone know of a source of this type of container in the south or
south
east, as the only ones I can find are up north!

These 1000L containers, are they IBC ones? They can be found all over
the place. For example, just 1 mile from me there is a joinery factory
with glue delivered in IBC containers and they sell the empties off for
20 quid a time.
Have a look closer to home, you'll find some for sure.

Yup, they are the ones!

Like this one on eBay for example...
http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=7608990739

Sparks...