iirc there was one for sale on ebay or autotrader with it on....most are generic systems and will "bolt on" but one issue we see a lot are burnt out valves from such
conversions...
That's a shame, it would make sense to have an LPG conversion, would be nice to have that cheaper motorway fuel and the fun stuff for around the country lanes and such, are the engines just not really built to take LPG?