Paint colour match for festinog railway's loco green

[Lner fan Sam]

Does anyone know of a spray paint that matches the green used on recently restored welsh pony on the festinog? It needs to be rather resilent to heat due to it being used on a gas fired mamod.

Cheers in advance.

Sam.

[laalratty]

The Roundhouse mid Brunswick green was always a pretty good match for FfR green, but they don't have it as a standard colour now. You should be able to get tins of it from Locoworks though