Let me know what you come up with for this. I'm very curious as I sort of *cough* ordered something for myself...
Ok I've been looking around a bit and D'Addario has single strings that should work well... their Silverplated Wound classical strings go up to 56
D'Addario Classic Guitar Single Strings
and they have a tension chart that includes the classical strings here:
http://www.daddario.com/Resources/JD...sion_chart.pdf
the D'Addario classical sets are outlined here
D'Addario Classical Guitar Strings