That does sound expensive Opti. But is that classed as a "major" servive?
I know mine is a 3.2 Vx, not a Jaguar, but my last Vx main dealer interim service was £86.12 (with TC) and my last major service was £380 with everything, plugs, all filters, oil, battery check, etc., etc, done. 
You seem to have bought a lot of etc's there.
I am quite prepared to pay it as it is my choice. I could do it, but it is all too easy to let Vx technicians go ahead and give the car a thorough service, good inspection, and diagnostic checks, in a nice fully equipped garage, and then drive away knowing it is all fully guaranteed and done at trade prices
You must have had better experience than me. I could write a book on all the items not serviced/unnecessarily overserviced on my cars over the years. Admittedly I haven't let them since I've been retired and have had time to do my own. 
I have had my "experiences" with Vx dealers, but I have always got to know the service manager well, then constantly asked questions on what they are doing, so got finally the right answer. Sometimes I have directed them on what they should do. Like two years ago my cats needed replacing and they quoted me a not very nice price, even with TC. I then informed them of a company that supplied the cats needed at half the Vx price. They fitted them, and the service manager even ensured a record was kept of that supplier for other customers.
It is the way you work with a Vx dealership that counts, and I have always used my managerial skills to "advise" them on what they are doing, asking questions when they are giving me a load of bull, which dealers have tried to do over the decades, probably because I am female, but also because it is their natural default. Of course if things go wrong, as they did with an air con compressor they fitted, I managed to get full reimbursement of over £1,000, even when the part was "out of warranty" as I went into professional business legal mode and commenced legal action.
If you keep your dealer "under control" you will get the best results out of those who are fully trained to work on your make of car.
