After storage for that period of time I would, as you said, drain and replace all fluids. If you haven't done so already I would pull the spark plugs, disconnect the fuel pump and run a compression check to see if there are any bent valves. The reason, often unspoken, why people park a Ferrari and don't do anything with it is because it begins to run badly, sometimes caused by a timing belt skipping and a couple of valves hitting the pistons. A leak down check would also tell a big story as to what kind of condition the internals of your engine is. When people find out what it will cost to fix they go into shock sometimes and park it.
I'm not trying to scare you but if you start there and determine that this aspect of the engine is okay you can proceed to the more obvious things like check and plan to change all of the fuel lines. Change the plug wires if they look original. Pop the distributor caps and clean and inspect the contact points and cap terminals etc.............................
It would help if we knew what year this car is and other specifications.
Good luck,
DJ