Thank you once more, you guys are amazing.
My total cost for this has been c.£340 - for the most thorough service you can get really! A normal service doesn't seem to cover half this stuff, and costs several times more.
To give something back would it help if I listed all the parts and part numbers for the service so they're in one place?
From http://scuderiacarparts.com :
Air filter - Part number 186183 £35.62
Oil filter - Part number 188814 £18.30
1xSump crush washer (part number 10261860)
1xOil tank drain crush washer/gasket (part number 675000691?)
1x OR gasket (part number 133938)
2x Gear drain box fill washer (part number 10263460)
1x gearbox oil filter washer (part number 11199277)
1x Gearbox oil filter o ring (part number: 182119)
The washers total about £10.
From Opie Oils:
Oil - Shell Helix Ultra 5W40 x 8 litres £54.16
Gearbox oil - Castrol Syntrans Transaxle 75W90 x 4 litres £50.33
Coolant - Motul Ungul Optimal car antifreeze. Phosphate-free (VITAL), x 5 litres £20.79
Denso IU24 spark plugs x8 £63.04
Pollen filter - Denso cabin filter DCF046K £10.92
Specialist Tools:
Laser 4236 86mm 18 flute oil filter wrench, £7.31 Ebay
500ml oil suction gun - £4.67