Hi Brian
Compared to the JLRT one, Built by the Maestro (You)and which is just superb!- it doesn't look at all bad to me!
Cab window rubbers can easily be sorted!
I grew up with the 20s at Westhouses in Derbyshire. My first ever intro to trains was there in 1972 and I've been hooked ever since.
It started a career on the railways!
I've got 29 years in this year!
I'm a Western region nut though, so a 20's a bit dodgy for me!
I know they occasionally got to Gloucester.