ATSF 4-6-4 Blue Goose available in 2 versions: original (fully skirted) and final (partially deskirted), available from ATSF N Scale Models. Both versions are resin castings (shell and tender). The chassis can be a modified Concor 4-6-4 Hudson or a (heavily) modified Kato 4-8-4 FEF. The Concor is the easier modification but lacks to correct size drivers, the modifications to the Kato chassis are quite extensive, but with almost correct size drivers. Both chassis are good running/pulling engines and in the tender is ample room to add a sound decoder and speaker. A complete description of the Concor conversion and many more pictures are available on WWW.ATSFNSCALEMODELS.COM