Hi flasher
Gonna be very hard to get hold of now, even the Rk27xx are disappearing now, I tried to order a new rk27xx player to use with the SDK and ended up with a RKcrown! and it looked just like a RAmos rm970 clone.
Dealextreme is probably the best bet, but there's no guarantee it would be Rk26xx even if looks like one, I tried to get the one with a removable nokia phone battery about a year ago but was out of luck.
cheers knob