I'm 99% sure there aren't any in NZ with owners who would part with them, but I'm looking for a GRiDPad, or another quirky old (DOS) tablet.
I might end up building my own out of some spare industrial H/W I have lying around if nothing is available..
Amiga 4000: Apollo Turbo 040, 128MB Fast, 40gb HDD, CD-ROM (needs internet)
C64: 1541U-II, MixSID, WiFi, LumaFix64
ZX Spec, A1200, CD32, MacPlus/SE, A500, BBC Turbo Master (NASA), 2600, Acorn 4000, VIC-20, IBM 5155, GameBoy