Alan Keef Ltd., based at Ross-on-Wye, are building the No. 10 locomotive "Falcon", where recent work has seen the machining and fitting of eccentrics and expansion links.
Focus is being made on the bottom-end of the engine, before building the foot plating to support the boiler.
At Corris, volunteers have been producing fittings for both the smokebox and brake system.
If the railway can raise the funds, No. 10 could be in service by the end of 2022.
Jamie Duggan.