Back in the early 2000’s I got to do Acrobatic Training in a Super Decathlon at KPRC Prescott AZ. This aircraft is one of the best entries into Acrobatics & Tail Wheels, gaining more confidence and capability as a pilot.
The Decathlon started Production in 1972 and is a derivative of a Citabria.
Prices range from 50 to over 200K depending on year, condition etc.
There are some RC Options available. Great Planes made a 64″ kit that you may be able to find on eBay or a large hobby shop like Graves in Orlando FL. Outerzone has the plans for it at: