funky hi-life-- where to find it?

i'm talking the highlife genre, especially the older stuff from the late 50s to late 60s in ghana and nigeria. there are a few compilations and some stray songs here and there (along with tons of newer, not-as-good, gospelly stuff), but not much in the way of actual reprints or originals, at least that i can find.

looking because i listened to a 3:35 edit of CK Mann's "Funky Hi-Life" single on one of the comps, and really really want to find a copy of the record.