im looking to buy a lowish mileage tuono for between £2500 and £2800 .i have no idea what to watch out for , if anything needs checking etc . please any advice would be greatly recieved .im looking at a 2003 model for £2700 with 19000 on the clock, the pictures look good but apparently the tacho has an intermitent fault and the needle jiggles about . i was told this is a common fault and just needs a new sensor ??????: