Thanks, all!
Bish - I am hopeful that Eduard will bring one out following its upcoming P-51D. They're pretty good at filling in versions, like they are with their Bf-109, Fw-190 and MiG-21. Though they haven't done early Spitfires, much to your chagrin, I'm sure ;)
Gamera - there are a lot of these around still, but they'll probably go up in price eventually. I got this one on eBay within the last year, and I think I spent something like $25 with shipping.
-BD-