Hey mike,
The Reg number is random. (probably one I saw on a photo and loosely copied)
The Project is still a work in progress, therefor not 100% accurate as of now, the radiatior/roofline and various other things still need a lot of work, I'll be sure to take note as I progress.
I do see what you mean about the roofline, the sides slope in slightly, something I'd obviously missed in the beginning.
Another few questions I forgot to ask are if there was ever a fifth wheel version of the jnr constructor? as I've searched through google looking for photos I've come across some diecast model versions, but am unsure if they're true to their real life counterparts?
And also what trailers would they pull? as I've seen very few photos of them pulling anything, and when I do there's no information about them!
Anyway, thank you for your time and opinions on my work, I'll be sure to put the new information into good use!
Alex