I must admit its rediculous the amount of good mg rovers being broken at the moment, just do an ebay search, there must be more 180s being stripped than there are complete.
As said there will be none left before long
once they are gone they are gone. On the plus side if they keep getting rarer the value may go up in another 10 years or so and there will be plenty of spares in the meantime from people breaking them. Is the glass half full or half empty?
I think the best solution is you sell me your splitter and spend the money on a head gasket. Everyones a winner!