ebay, or buy a really buggered range rover on the cheap, at least then you can steal all the running gear too.
i've got a hybrid, it's a rangie chassis and running gear with defender and series body work.
Stumbled accross this.....on fleabay: item No. 140875431815
Maybe of some use.
if it wasn't the other side of the country i would snap that up for a rebuild project