Hey...welcome to the club!
Yes, the belt design on the Series II is very poor. It'* not tough to change, though. Supporting the engine with a 2x4 under the oil pan is suitable for removing the long bolt through the dog-bone engine mount.
As for your shaking and vibrating...are you sure you don't have an ignition problem? My 99 ran poorly at about 55K and I gave it a full tune up and it cleared right up. Been fine ever since. When was the last time you changed the plugs, wires, and oxygen sensor?
Do you have a Service Engine Soon light?
Also, what is the recall for...Fuel Pressure Regulator?