The KeilKraft Spectre's good, though the front end needs a little modification and beefing-up to give it any sort of longevity - Bill Morley's Scimitar is probably a better bet for a nice powerful .19. If you want an unflapped profile, my favourite would be GMA's English Peacemaker, the one he designed for AeroModeller in, I think, 1959 - I'll never forget my first flight with the one I built in 1960 for a 3.5cc AM35 diesel (the first of many).
Regards
John