You won't be able to lift the engine high enough to completely remove the oil pan as long as the transmission is still attached.
That said, while difficult and possibly frustrating, it's doable to replace the gasket with the engine in the car, dropping the pan just enough to get the old gasket out and the new one in.
I've done it twice with the engine in the car. The best way is to use the aforementioned single piece PermaDry FelPro gasket. You'll want to unbolt the engine mounts and jack up the engine. I use a piece of 2x4 on the crankshaft snout or on the balancer. Jack it up as high as it'll go (removing the upper intake can get you a little more room). You'll have just enough clearance to remove the oil pan bolts and drop the pan about 1.5-2".
Take the new gasket while it's folded in half, put it in the pan, and unfold it. The trickiest part is getting it around the pickup. The FelPro kit comes with four plastic studs to help locate the new gasket. Be careful using these if you replace it with the engine in the car. You don't have a lot of room to maneuver the oil pan around. It's very easy to bump one of the plastic locating studs and break them clean off.
If you decide to try it, be sure to get all pieces of the old gasket out. Anything left will compromise the seal of the new gasket.
I most recently did this job on my 1990 Grand Marquis.