B&HR #7 is unfortunately the victim of litigation between Edaville management and Maine Narrow Gauge in Portland, Maine. It is operational to the best of my knowledge, but MNG won't let Edaville use it and Edaville won't let MNG take it.
I believe the Hudswell-Clarke arrived on the property during Bartholomew days, but it wasn't until Cranrail took over Edaville that it was put into service.
I'd be interested in seeing that article about Edaville. Especially as to how it compares to the Tallylyn.