I've noticed a lot of bad info on the Rogue Forum as it relates to the vehicle's brakes. Before some of you were born, I worked at a shop doing brakes, tires, tune-ups, oil changes, HVAC, etc.. After a few thousand showers, I decided that life wasn't for me and went to college.
That being said...
I've never seen a caliper that didn't have a rebuild kit. I'm surprised that they're saying it's OEM replacement only. How many parts places did you call? Even the FSM shows you how to re-build a caliper. That alone makes me think that somewhere, out there, there's a kit available. Maybe you can call Courtesy Nissan Parts and see if they have something to sell you.
I've replaced boots much worse than what's in the photo on this string. You're not going to have much luck massaging the boot back in. You need a wood block and some compressed air and then pop the piston out of the cylinder. You can hone the cylinder with stones if there's any light pitting or rust. Replace any seals and the boot and replace any crush washers. That's it. It only takes a few minutes to repair these. I'd only replace a caliper if it was cracked (from experience, this usually happened either when the car was in a wreck or when a shade tree mechanic would use a c-clamp to push the piston back in during a pad change. You should
never put pressure against the cylinder end of a forged caliper. Use the special tool to retract the piston. It's like five bucks at Sears. A c-clamp is
NOT a brake tool.
Also, something needs to be said about bleeding brakes.
Refer to the FSM. You can get it online at
http://www.nicoclub.com/FSM/Rogue/. Be sure to disconnect the negative terminal on the battery before you start the bleed procedure, otherwise, you'll put up an uneven load on the ABS actuator and electric control unit (attached to the right rear firewall) and your brakes won't be happy. Use only DOT3 (synthetic is fine), and bleed in this order: Right rear, front left, left rear, right front. Don't let the fluid level in the master cylinder drop below the minimum line. When you're done, fill the reservoir to the max line, re-attach the battery, and you're good. Don't pretend that Nissan didn't spell out this specific procedure in the FSM because they thought it was hilarious.
Finally, regarding the bed-in procedure that was posted earlier, each type of pad has its own specific bed-in procedure. Ceramic is different than semi-metallic, which is different than organic, etc. Types of rotors may come into play as well. Your best bet is to go to the Tirerack website and look up the specific bedding/burnishing procedure for the type of pad you bought. If you replaced your pads and rotors with factory pads and rotors, then refer to the FSM bed-in procedure. Going 60-5mph 8 times in a row is a good way to cook street pads (and a good way to get a ticket). That is an aggressive bed-in that would only be useful on a big brake / racing kit.
Remember, the brakes on the Nissan Rogue came off of a Sentra-R. In other words, they were made for a small car. When Nissan added 1000 pounds to the mix, all they did was ensure that the brakes would be short-lived. It was a money-saving corporate decision to use under-sized brakes from the Sentra parts bin (the Rogue is built off the Sentra platform). If any of you are scratching your heads wondering why your Rogue needs new brakes every 20,000 miles when every other car you owned could go 40,000 miles, well, there you are. If that makes you angry, then write a complaint to the NHTSA. If they get enough of them, maybe they'll do something about it.