Makes my effort with Steve Goldings class 20/3 look very lame ! Robert
Robert, it's not you - it's the evolution of Steve's kit.
I may be able to help - just not now, while I'm overwhelmed with multiple urgencies.
It's important to emphasise that Steve never intended to produce a scale model for production, just a generic Type 1 to display his own trains of the wagons he makes and sells. Then other people wanted them, and the model has been an unexpected commercial success.
Steve based it on a Wagon & Carriage Works kit, which itself is a mix of good and bad. The bogies and much of the hood weren't bad, but the complex cab was completely misunderstood, and the striking tapered nose simply ignored. Therefore Steve's resin masters didn't stand a chance, and the price-point didn't justify professional casting. Which is why Steve told me to buy a tub of Isopon to fix the bubbles, distortion, and misplaced windows.
Someone has tried to cheer up Steve by telling him it represents a rebuilt version of the Class 20, viz a new parallel hood and whole new cab, but despite seeking photos of every surviving Class 20 I've never come across one
On the plus side, because the model is oversize even for 10mm Scale, it
can be patched and machined closer to Class 20 shape.
I've had reasonable success - that Steve seems pleased with - using templates made from BR drawings. It needed a surface plate, a good Square, a bandsaw, and a beefy linisher. Plus a lot of Isopon. Understandably though, Steve doesn't want all the ramifications of starting afresh with new masters, having already sold many kits.
Here's the machined superstructure ready for hand finishing:
Straightening and re-proportioning has removed all the surface detail, which I shall have to make and apply separately.
The obvious way forward is simply to follow Steve's original intentions for himself: glue the kit together quickly, paint and letter it boldly, and view it from a distance so that it's the Livery that stands out rather than the shape. (If necessary tell people it's a rebuild.)
Attempting a 1:32 version is doomed. It would be easier to machine one from solid blocks of Isopon.
But if you'd like a more Class 20 look in 10mm scale. I can offer drawings and profiles, machining suggestions and prototype photos.
But not for quite, a while as my entire life is in cardboard boxes in between houses.
David 1/2d