Service intervals are 12,000 IIRC but 6,000 rings a bell too!!
Boot floor has been sorted on Disco II, but check Electrics, Electrics and Electrics!!
Make sure all electrics work, I can guarantee they wont, something will have broken!
Whether it be:
seat motors/heaters
mirror motors/power fold
alarm
Central locking
interior lights
Corrossion along top of windscreen/roof
exhaust manifold squeal under hard power (studs sheared (sounds like fanbelt slipping))
Wheel Bearings £200>
Clutch and Flywheel £600>
ANY dash lights.
Coils on rear are a bonus IMHO (air bags removed)
Sunroof leaks
18" wheels are a negative (expensive and limited choice of tyres)
Hard to engage gears 1st and 2nd (quite normal when cold though)