Before you pull anything off do a quick compression test. Then go for the turbo. If it\'s white I would assume head gasket over oil seals which would usually be blue. Head gaskets aren\'t as bad as people make them out to be and not such a big deal to fix. Just means you can do a good service with a coolant flush, radiator flush, water pump, cambelt etc. peace of mind motoring!
But I really wouldn\'t be driving it let alone trying to load it up and what not till you find out what it is.