Rare locos

Does anybody know if the is a HO scale Pennsylvania 6-4-4-6 S1 locomotive available? I have seen the O scale, and know I am looking for a HO model. If anybody has any information, please post it. Or, has anybody scratchbuilt one?

It has been available in brass more than once. The prototype was a rigid framed locomotive, not an articulated, so this would need a VERY large radius to actually run (as the Pennsy learned with the real engine of which there was only one).
Dave Nelson