Topflite sells a roughly 1/6th scale corsair - it's a balsa frame. I'm not sure if you'll be able to buy those models as fibreglass kits in 1/7th and it might be worth making your own moulds and producing your own. Also the decals can easily be reproduced on computer and printed at a local print shop and shouldn't be much of a problem.
Corsair Spitfire
Also try
www.giantscaleplanes.com they have a nice looking
Hellcat