If you are looking for a 1/2A design that is capable of doing the pattern, there are a number of designs that have been published over the years. Most of these would be suitable for either the Cox TD .049 or the Cox Medallian .049. In many cases, the Medallian is the better choice. Plans for most of these are available from one or several sources. Most of these designs have flaps. All have built up fuselages except the Magician listed below.
Several of these designs were the outgrowth of the unofficial 1/2A stunt events that were started in the mid 70's.
Pinto by Dick Mathis. Flying Models, Dec 72. This is a very good airplane. Sort of a miniaturized Oriental.
Baby Bird by Tom Dixon. Model Aviation, Nov 86.
Barecat by Bob Baron. Model Aviation, Jun 99. This is perhaps the best performing 1/2A stunt ship published. No flaps.
Cheap thrill by Jim Thomerson. Model Aviation, Dec 98.
1/2A Fierce Arrow by Allen Brickhaus and Gerry Ruschke. Flying Models, Sep 01. A 1/2A version of Bill Netzeband's Fierce Arrow.
freedom Fighter by Dick Byron. Flying Models, April 81
Gremlin by Tom Dixon. Model Builder, May 75
Half A Magician by Larry Renger. Flying Models, Jan 00. Profile but a good performer.
1/2A Mirage by Lou Wolgast. Flying Models, Aug 80. A very capable design.
Stuka Stunt by Barry Baxter. Model Aviation, Sep 90. A rather large bu impressive semiscale of the Stuka.
Sunspot by Chris Lella. Model Airplane News, Oct 77. Good numbers for stunt.
Tercel by Trostle. Model Aviation, Sep 76. This model has placed 1st at several of the Nats unofficial 1/2A stunt events.
This is not an exhaustive list, but is representative of the several designs that appeared after the mid 70's that are capable of performing the entire stunt pattern. There are others, as well as a number of profiles and a few models that were published in the British Aeromodeller magazine.
Keith