A die-hard DC OO modeller but have now got into On30 and Gn15 narrow gauge scales and learning about DCC for the same, much prefer older stock although have had and still have modern Loco's too, building most of my narrow gauge stock from salvaged OO chassis and bodies and from scratch
That's not the Budgie Jinty, the picture below is of a playworn red Budgie version.
The LMS casting you have I also have an original but not yet traced the maker but abpout the same size
It is well oversized compared with the Bagnell it was based on, but I have a lot of, shall we say 'freelance' small shunters so it fits in well with the neverwasa's I already have