1. helpful if you can determine if oit or power steering fluid (red usually) or traansmission fluid (also red as is Dexron)o n the 2.5 l engine, At one drip a day i would live with it. If red fluild inside of steering boots, then that is the source. could also be driping from tank seal of power steering pump or front seal. Also check the transmission cooling hoses and clamps. these are on drivers side and join the radiator.
If oil i would suspect valve covers just hardend. about $40 for felpro. But if 2.5 DOHC, a bit difficult to replace, ooone has to lift up the engine after loosing the front mounts, and will need a 10 mm gear wrench. Took me 4 hrs, and I had the car on a lift at locah base hobby shop, and a transmission jack to lift the engine.
2. You must replace the Axle boot, you will get rain, salt, snow (i live in DAyton OH) into the Constant Velocity Joint, which will then fail, more likely sooner than later. This is much more important the any drip.
3. Gas smell is likely loose clamps on the hoses, return hoses, etc. most of these are in front of the driver, are black and about 1/2 in in diameter. The clamps are silver, and go fully around to contain about 40 psi. if a small leak, or seep, the gas will evaporte as the engine warms, air flows etc. just tiignen the clamps.
Good Luck