This one is Lobaugh, from a kit plus parts donated by friends many decades ago. Boiler went through Vince Waterman and Frank Thomson, among many others on the East Coast before it came here in a trade. Mechanism came from Hal Sharkey of Newport Beach (also a pilot).
I had the smokebox front specially cast - the boiler, as I recall, had a piece of used brass sink tailing soldered in. I don't remember how I fixed that, but it got the proper smokebox somehow. Tender trucks are PSC, trailing truck is Pearce or CLW, tender underframe is built up from bar brass to simulate what Lobaugh would have done (this was an Al Ellis production, with annealed cab and wood tender floor).
It may not be the best Lobaugh Greenbrier out there, but I bet it ranks in the top 10% - I am very pleased with it in my collection. And yes, I know that logo on the tender was never applied to the Greenbrier, but hey - somebody else can paint over it.