i have witnessed a mk2 8v, stood for 10 years. working battery robbed from a mates mk2 , plugged it in checked oil level, gallon of unleaded and badda boom, started on the button first time! Personally before driving it i'd do the cooling system, drain it, refill with the correct ratio of water / coolant 50/50. Then run it up to temperature. Soon as it hits 90 degrees C switch it off then change the oil and filter. I'd also maybe pull the sump off and check the oil pump filter isnt full of conjeeled sh!te. Engine flush and injector cleaner is a good shout and basicly just service it to buggery. It's worth getting a local specialist to look over it for mot. A well trained eye can spot things that others will miss and save you serious wonga! Don't go by the advert go by personal recomendation. if your in cornwall i can recomend ya somebody! Good luck!