I'm no expert, but have been preparing for a similar trip for the past year. Here's some stuff I've found.
Bikes: All moderately priced, but are still among the best touring bikes.
-Novara Safari - Bike I currently own. 'Mustache' handlebars are amazing. Handles weight great. Can get 42mm tires for good road/trail durability. Disc brake compatible. Comes ready to ride with a back rack and strap in peddles.
-Novara Radonee - Wins a bunch of awards each year I'm told.
-Surly Long Haul Trucker - Many have said this is the go-to touring bike. Shifting mechanism is a bit weird for me.
-Ortlieb - Probably the go to for pannier bags. A bit pricey, but you need good bags. Water-proof. Can clean with just water. Simple, but often the fancy attachments other bags provide just get in the way or break. Note: Some people opt to pull a trailer versus the whole pannier bag setup. This will save some wear and tear on your bike tires, but only seems feasible for road riding. I don't have any experience with trailers though so maybe someone can chime in.
-Sleeping Bag: All preference I suppose. Down is lighter, but doesn't hold temperature if wet. Synthetic is heavier, but isn't effected as much when wet.
-Sleeping Pad: Q-core Big Agnes is a great pad. Good for side-sleepers. Pricey, but you'll want something good. You don't want to start your 100 mile day with a sore back.
-Tent: Something light. Make sure there is room for you and your gear inside. Also big rain flies are nice as it allows for a covered area outside your tent for shoes and cooking.
-Air Pillow: Something not only comfortable, but with a soft outer shell. This provides comfort and grip to prevent sliding around. Otherwise your forced to jam your pillow into the hood of your sleeping bag, which I've had mixed results with. I'd recommend the Cocoon brand of pillows. Note: Some people just stuff a sack full of cloths for a pillow. This will save you some weight, but I wouldn't risk it for a cramped neck.
-Camping Chair: Most would say this is a waste of space and weight, but again comfort is king! The more relaxed you are with your down time the better your recovery is for the next days ride. I can give you some recommendations if needed.
-Tarp: This is an idea I might try for my trip. Just a light-weight sheet of tent material that can be thrown on the ground if needed. Prevents dirt from getting on everything.
-Bear bag: Seems like a must for where you'll be traveling.
-Stove/Pots/Cookware: If you'll be cooking meals for yourself.
I'm sure I've left much unsaid, but this hopefully helps!