Does anybody know about these proposed steam locomotives?

Okay, so does anybody know about the British Railways Western Region’s request for a 2-8-0 version of a Standard Class 5MT 2-8-0, the Great Western Railway proposed Hawksworth 4-6-2 to be derived from the “Country,” class 4-6-0, or the British Railways Standard 5 4-6-2 proposal? If anybody does, God bless you, and thank you!