Have a look at the Sportsman Aviation (Global) range of warbirds. Both the P 40 Warhawk and the Spit are very good, fly very nicely, could almost be used as a first low wing. My mate has the P40 with a Magnum 91 4 stroke, flys nicely, I have the Spit with a Thunder Tiger 61 2 stroke and it is FAST.
Seem pretty tuff models too, pancaked mine very hard and only damaged the covering where the wheels flexed up through the wing. The only thing I was not happy about is the canopy, very brittle.