We sometimes forget how difficult it is to obtain a car and get proper paperwork done when abroad!
And factor in your already high fuel costs!!!
R-12 is expensive in the US and hard to come by because of strict environmental guidelines by the EPA. Those in the forum that have converted their R12 systems to R134a have witnessed a decrease in cooling efficiency...
Noticed your mileage on your signature...that's pretty low for a 93! Nice acquisition!