Hi
Depends on whether you do the maintenance yourself or not.
If the car drives fine, do a normal maintenance, meaning engine oil, oil filter, engine air filter. Depending on the status of the O-rings of the throttle body, it's better to have one or two spares. They are very cheap from Scuderiaparts (all original parts) and a cabin air filter.
On my side, the OEM parts for that cost with the right oil and filters, etc. Around 490 euros, let's say 500 dollars.
And it takes me less than 30 minutes to do all.
If you now need sparks and coils, O-rings for injectors, etc., you will need 2 gaskets, 12 sparks, 12 coils, 12 O-rings up for the fuel injectors, and 12 O-rings down for the fuel injectors.
It will take several hours of labor.
If you do it yourself following all the procedures and specs, it will cost you around 3000 dollars.
Brakes depend on whether you have normal or ceramic as I do.
Just pads for my ceramic front and rear without labor, I paid in Aston Martin Luxembourg 3900 euros for just the pads.
They are a bit cheaper from Scuderiaparts.
Gearbox: The pan filter and oil are less than 450 euros, plus or minus 500 dollars for just parts, incluring the pump to pump oil in. This price is if you do it yourself. It takes around one hour of work.
2 PCV valves if you buy in the Internet between 25 to 40 dollars each in Aston around 350 each at least ( exactly same one) ..motorcraft EV- 152
Transaxle oil change: Filter, oil, etc., all cost around 300 euros if you do it yourself. Less than an hour of work.
Oil and brake changes were done in a small garage. Nothing particular, and with the garage's oil pump filling up the line system automatically, it's super easy and efficient. I paid 250 euros.
Now, if all done in an Aston Martin dealer.
In Aston, I had a price for parts changing sparks, coils, oil service, PCV, brakes (new pad set for ceramic ), oil engine change, gearbox oil change, etc... just in parts, almost 10,000 euros.
You must add labor, which is expensive. Very.
I don't have the full labor time, but all together i wiupd say 15,000 euros at minimum will be the price... maybe add another 2,000 euros for things like the auxiliary belt, etc.
But good news: You don't need to do all this big maintenance all the time. Just once to be sure. All after is just regular oil maintenance, quite cheap and easy to do yourself.