Been lurking for a long while, but thought I would report that Motorhog has a set of four Ferrari 308 wheels (not mine!) up for auction, in case anyone would find that useful.
A lot of the Ferrari wheels from this period use metric tyres which are horrendously expensive. A lot of owners swapped to imperial sizes due to the tyre prices, hence a lot of cheap metric wheels knocking about.
Always check if they are imperial or metric.