Unfortunately, since they're not MesserSpitStangs, the major manufacturers are unlikely to look at them; the economics of producing them are prohibitive, leaving the field to the limited run producers.
I'd like to see CMR do an S-42 to the same standard as their Empire boat, but since Anigrand have already released one, it's not very likely
Nope-- I agree. Have you been to Bryan Ribans Seawings site?-- it's great for research and general looking. Also, sometime in the future (not sure when), The Seattle based NWSM's are due to put a seaplane display on at the MoF in Seattle. I was asked to build a few "seaplanes" for that display, but it's been preempted by the Boeing Centennial display-- not sure when the seaplane display will go back on. Unfortunately the display case is small, so the really big boats are not possible, but there will likely be some interesting float planes and smaller flying boats.