The source I was reading from stated the loco may survive at the Ravenglas Railway.
Unless the loco has been converted to a 4-4-2 and a tender outline I think that it could be a bust. She was buit by Bassett-Lowke as was the Blakesley loco.
The loco at the "Ratty" is "Synolda" and rescued from Belle View Zoo in 1978. There is little detail on their website.
STOP PRESS from
here
"1947 saw owner of the Saltburn Miniature Railway purchase another locomotive, this time in the form of a 4-4-4T named ‘Blacolvesley’ which had been built by Bassett-Lowke of Northampton in 1909 and is believed to be their first and only attempt at building an internal combustion locomotive with a steam outline, their being more famous for their to scale steam locomotives used on many Miniature Railways such as the Ravenglass and Eskdale and Romney Hythe and Dymchurch railways. The engine had started life at the Blakesley Hall miniature railway before its move to Saltburn. THE BLAKESLEY HALL RAILWAY was sited in the grounds of the house of that name near Towcester in Northamptonshire, the line having been built in 1903 by the halls owner Mr C W Bartholomew. The 15” gauge line ran through the grounds as far as the East and West Junction railway’s Blakesley station on the Stratford upon Avon to Blisworth Junction, the line later becoming the Stratford upon Avon and Midland Junction Railway, later part of the LMS, was laid to facilitate the movement of coal and other supplies to the house. As No.7 was becoming in need of repair the new engine renamed ‘Elizabeth’ took over operations on the line. It is not known what happened to No.7 after it left Saltburn, though there are rumours it could still be in existence."