As far as exhaust goes:
Undo all the necessary bolts and parts in order to pull the tranny/t-case back from the engine.
Next, support the tranny/t-case, and remove the cross member that the t-case mounts onto.
Next, get a buddy or a good jack to support it all and lower it down, without having to touch the exhaust.
Don't forget to remove both shifters.
Don't forget to remove the flywheel inspection plate.
Don't forget to remove the starter.
Don't forget to drain the t-case before you pull the front and rear d/shafts out of it.
I did all this weekend before last. It's not so much fun by yourself, but it's do-able. Just be sure to allow yourself plenty of time.
Installing the clutch is the easy part. It's just jerking around with the bulkiness of the tranny getting it out, then getting it back in.