The Boer War train was released at the London Toy Soldier show and is now up in the shop:
https://imperialminiatures.co.uk/product-category/boerwar/bwt/The painted sets are £85 each and include the scenic base.
The kits are £35 each and the scenic base is available as a casting at £10 - so the train as shown is £170 painted and assembled or £90 as a kit.