Isuzu Trooper 3.2 v6 90,000km - to convert or not to convert to lpg - trooper v6

my isuzu trooper with 90,000 km milage, has been a very reliable and comfortable vehicle for me, but with gasoline prices as it is now, i am thinking of converting to lpg. does anybody have any experience with such a convertion. tartarini kits are available in the manila are they any good? what about the issues regarding valves, valve seats, and cyloinder haead gaskets?