It sounds like you are relatively new to the hobby. How well can you fly AND LAND ? Can you land a plane at about twice the speed of the Avistar ? That is about how fast MANY of the warbirds land.

Warbirds are nice, however, MOST people can not handle them until a 4th (or later plane). A warbird goes where you point it. IT MUST BE FLOWN FROM THE TIME IT LEAVES THE GROUND UNTIL IT GETS BACK ON THE GROUND AGAIN. A warbird NORMALLY has very little (if any) self correction due to lack of dehideral. One moment of inattention and you are USUALLY in trouble. Many warbirds are difficult to take off and land and the majority are VERY SENSITIVE in the air and can tip stall easily. There are exceptions to this - the Bird Dog is a prime example of an exception. And, YES, a Spitfire is quite tricky to take off and land. The Texan isn't as bad as the Spitfire, but it is still tricky. Take offs and landings with a taildragger are a lot different than a tri gear plane.

I know this isn't what you want to hear, but here it is any way.

If you can handle a trainer (Avistar or similar) and CONSISTANTLY do very good take offs AND landings, I would suggest something like the SIG 4 Star or Great Planes Super Sportster. Once you are good with that AND can fly the plane to it's potential, then look at something that is less stable in a taildragger. Somethin like the Lanier 3D. Do the same with that plane. Then you should be ready for the Texan.