I been eyeballing those myself !!! Those are so Kool !!!!!! Where did you get the pictures ? I didn't see those on the Unicraft website or on FantasticPlastic either I been thinking of trying some of those kits from Unicraft but haven't yet. I've heard they were good kits but don't know anybody who has bought one.
Ennis, the kit subjects are good, but the kits can be a real challenge. I've got a few of Igor's creations and with a bit of work they do clean up good.
This one below is half an Unicraft kit, it's a conversion to make the RR Griffon mid-engined Mustang, you get all the fuselage stuff, the wings come from a donor kit.
Thinking about it, this would fit into the beyond '46 nicely but it would have been more like the bottom pic, I was told by David Birch (the official RR Historian) that had it flown it would have had a Tempest tail fitted. I've also modelled this to have a RR Crecy engine installed, this was to be a 5000 hp 2-Stoke engine. EDIT: That should read, a 5000 hp, 2-Stroke, V-12, sleeve valve engine with an exhaust turbine to boot.