z-base-32 isn't going to magically disappear off the face of the earth. Anyway, here's a 32-byte secret key as hex. Still easier to type in than to drive to a data center. GPG is just horribly verbose, and the old school RSA keys are huge in comparison.

fd3223ec 20f55ae7 6fddc979 d41e2276 25255516 b08f5cd4 3d66d676 a054d2bb