There was one for sale near Wynmondham, I don't know if it still is. I've copied the post below:
12th May 2015, 08:58 PM
Aveling & Porter, class BT, 4NHP, 8Tonne steam roller
'White Heather'
Engine No. 8766
Built in 1916
Reg No. MGV 259V Registered 1980
supplied new in 1916 to the war department before being sold as surplus to the Italian State Railways where it remained until
returning to the UK in 1975 to D I J Grey of Great Shelford, then to W R Bird of Tunstead in 1978. sold at the W R Bird sale in 2006, acquired by the present owner in 2007, a new fire box was fitted by Mervin Mayes at Yaxham in 2011.
A very well looked after & maintained engine in ticket and ready to go!
For pictures please see the link to steam scenes
http://www.steamscenes.org.uk/engine...d-roller/8766/
for further details please contact Simon Bean
07789 284442
01953 600907