You're very brave--it's enough trouble sorting out an O/D monoplane!
Chip Hyde's Scandalous and the Onda bipe by Naruke are the only recent ones which spring to mind---even the mighty CPLR's Suxess didn't live up to its name for long.
Have you looked at the Fliton Rogue 3D Bipe? It's only a little electric thing, but its proportions look right for scaling up to F3A, and the thin wing section looks trendy too.
And I've seen it fly in the hands of a fairly average club pilot, and it's certainly smooth.