Ibex.
But an original Bowler Special would be interesting, or a QT Ultra-light.
If you have a good RR chassis and drive train, why not just build a 100" Hybrid? It is simple enough to fabricate the Bowler Special/Series 1 less than curvacious panels, make your own bulhead and use series wings. It would take the same time as re-building the Tomcat kit. Or just buy an engineless 90 and chuck on your drive train.