Hi, I'm new to the forum, but have been following this thread with great interest, I travelled in Leyland Terriers during my early days in the railway. I am also into 1/24th scale lorry models, and earlier this year I built this:
Not that much use for model railways given the scale I guess, but I thought you might like to see it. Apart from the wheels it is totally built from scratch using flat sheet plasticard.
More photos on my flickr photo strean if you fancy a look:
Cheers
Ian