Sorry Rex - it's not the Cup engine, not the Cup power, and not the right age. Same block, yes, but several differences. Cups weren't produced until '96, though the 24 rhd UK cars were built in 1997.
Back then a Cup cost about £40k, while a low mileage used 2 lt lhd normal Ghibli could be had on the continent for about £10k. I know, I did both.