Hi mate, thanks for checking in
I've been a bit distracted with these projects at the moment (featured in my blog)
3D printed LBSCR E2 on Hornby Thomas chassis
Turning a L&MLR Kitson 2-6-4T 009 kit into a standard gauge 2-6-0T, and the hopper wagon behind it is my first attempt at card modelling (using an empty chocolate box and tri-ang chassis) in the style of an enlarged Snailbeach hopper.
As for a 4-8-2, I'll try and get a pic of the pony truck mounting so you can see what bogie could be adapted to fit, but I don't thing it would be too difficult to do. I'd recommend the chassis highly as its a very good runner.