CSLR Loco Drawings

I might be able to help. What scale are you working to?

I am afraid that the original works drawings of these locomotives were destroyed when the Beyer Peacock works were cleared out (Beyer Peacock built the bodies and Mather & Platt added the electrical equipment).
Off the top of my head, Edward Hopkinson included an end elevation of the Mather & Platt locomotive in the published proceedings of a talk that he gave to the Institute of Civil Engineers in February 1893 - this will go with your Engineering side elevation. In addition Model Railway Constructor published 4mm drawings of an M&P locomotive and an Ashbury carriage in their November or December 1970 edition.
I will check these references for you tomorrow and also post main dimensions for the locomotive so that you can scale the drawings. I have several notebooks of measurements taken from locomotive no.13, so I can confirm any details that you wish to check.

It is possible to create a set of drawings from the remaining locomotive and anyone is free to do so, however, that is not my main priority. Such drawings would simply be another way of recording a locomotive that still survives and which was 'preserved' in the 1920s in a condition that attempted to give it an appearance something like original. Although most of the Mather & Platt production locomotives were rebuilt with new electrical equipment and motors, this is one of only two that was not; but it was withdrawn from service and cannibalised for parts for something like 10-12 years. This means that it was neither in original or withdrawn condition when an attempt was made to save it.
To say that the methods of 'restoration' used on it were basic would be an overstatement. These appear to have been based on whatever the restorers though was right, rather than any thorough research on their part. Luckily, the electrical equipment was not interchangeable with the rebuilt locomotives so much of it appears to have survived, although some replacement parts were probably recreated using a degree of guesswork. There will also be some service modifications that will now be seen. It almost certainly never ran in this exact condition and is effectively a pastiche - although less so than many preserved locomotives.
The contemporary drawings that I referred to are therefore a more accurate record of what was built, while the 1970 MRC drawing is based on the surviving locomotive.
For me, the real value of a set of drawings of the LTM loco would be to compare them with contemporary drawings as a means of assessing some of the differences between the original locomotives and what we now see.