For the 944 conversion, you could try getting the bearing adapters to fit porsche bearings on the ghia spindle from dgluyas since you can't get them locally. He's in Australia. Maybe he can hook you up with a caliper adapter too.
http://www.germanlook.com/Forums/sho...bearing+spacer
I don't know much about the 914 conversion, but I'd imagine it's going to require some machined adapters and since you can't get any machine work done locally, you may be stuck in the same situation for both conversions....