340 manifolds will fit with Schumacher motor mounts. My friend has them on his 64 Barracuda. The only problem is that 340 manifolds are pricey now. Any particular reason you didn't like the Spitfires?
If there's any way to get some photos, especially of the driver's side, I (and probably others as well) would like to see them. Thanks in advance if you're able to snap a few.