On Fri, 07 Jan 2005 16:42:15 +0000, Grunff wrote:

New a 25l dewar is about £300, but you can get second hand ones for
around £100.

Even more fun - damaged Dewars are free and the TIG welding course is
about £200. If it's not aluminium and the damage is minor, you might
just be able to silver solder it.