the longer you let the engine sit before tackling this, the less oil will drip on your face while you're trying to work. I prefer at least a day.
scraping off the old pan gasket sucks. I used a straight razor blade for the bulk of it, then an sos style pad for the rest.
buy 2 seals so you have a backup on hand if anything goes wrong. return if unused.
you need some separation between the body and front axle to get the pan out. either a lift kit installed, or jack up the body.
you'll want a brass punch to push the upper half of the seal started. then pliers to pull it down and out
I prefer to let the silicone stuff cure overnight before starting up the engine.
I imagine there are a few youtube vids covering it