In 1/48, how about the new Revell PV-1. I have read nothing but good things about it. If you want to try your hand on something in 1/32, how about a Hawker Sea Fury or an Allison engined Mustang (P-51A/A-36/Mustang Mk.IA) from Hobbycraft. Both are decent kits OOB, affordably priced (at least here in the USA) and nice platforms for you to try your hand at improvising details.