First things first, complete tuneup, oil change, filter, air cleaner, plugs, wires, fuel filter, PCV valve, O2 sensor and coolant.
Here is what i did to my 2.8 and how much I paid:
The K&N drop-in, about $35. The premium plug wires, $32. MSD 6A (used), $100. I just pulled my MSD wires cause one got burnt to the core, damn 90deg boots.