I recently picked up a USAT 0-6-0 "dockside" loco for a very good price. I plan to repaint it and rebadge it to appear as Reading RR 1251, which is described as the "last operating steam loco on a class A line in America." Apparently the reading still used in in the early 60s in regular yard service.
They are both 0-6-0 saddle tank engines with slide valves but otherwise the USAT model is much longer than the Reading and #1251 has two square sandboxes on either side, different headlights and the bell is in a different place, among many other diferences. I'm not loomking for a perfect model, just a mdoel that's slightly more like the Reading prototype
I've never tried to mess much with a diecast model. Are there any guides to kitbashing in metal. I assume cutting the USA model down would be a non-trivial job and very unforgiving. I may not even try. But are there any sources of info out there for kitbashing a diecast model?

They are both 0-6-0 saddle tank engines with slide valves but otherwise the USAT model is much longer than the Reading and #1251 has two square sandboxes on either side, different headlights and the bell is in a different place, among many other diferences. I'm not loomking for a perfect model, just a mdoel that's slightly more like the Reading prototype
I've never tried to mess much with a diecast model. Are there any guides to kitbashing in metal. I assume cutting the USA model down would be a non-trivial job and very unforgiving. I may not even try. But are there any sources of info out there for kitbashing a diecast model?