I chased up that green 145 on ebay, and confirmed that, yes, it does have PAS. Electronic, apparently Mitsubishi, I think I heard him say.
But since then I've been steered towards 164s, and have just signed up for a maroon 1971 auto, one owner, 77,000 miles very nice maroon interior, rust spots in both wings at the top (common apparently) and in a sill, but hopefully otherwise in very good nick. Fortunately I have a good contact for welding and spraying.
Now I just have to get from western Scotland down to near Heathrow and drive it gently back. Have to bide my time for a week or two to get away for the trip.