Another idea, RIPE for the using. Seriously y'all. Hey, I just met you, and this is crazy - but here's a story idea, so pm me maybe?
Hidan entered the apartment of his landlord, and his attention was immediately drawn to the couch where a youngish man was reposing, a bloody towel held to his shoulder.
"You look really fucked-up, kid."
"Hidan, use your inside language," said Kakuzu from the kitchen.
"You do know the little punk's bleeding to death on your couch, right?" Hidan stared at the man, realizing that he looked vaguely familiar.
"He's paying for the towel and the upholstery. With interest." Kakuzu emerged from a nearby doorway with a fresh towel in his hand. He tossed it to the bleeding man, who accepted it mutely. "What do you want, Hidan?"
"Well, for starters, I'd like to know what the hell's going on," said Hidan, moving to sit in a questionable-looking recliner. "One of your grey moneymaking schemes?"
"He suggested it, not me," said Kakuzu. Pause. "Close the goddamn door behind you, Hidan!" He swore as he crossed to close the front door.
The injured man stirred. "Is he trustworthy...?"
"Yes," said Kakuzu. "Should he at any point lose my trust, well... I don't leave loose ends. Hidan, this is Itachi, my newest client. This is Hidan, my pain-in-the-ass of an associate." He started looking through a cabinet, and eventually emerged with a decanter of golden liquid and a cup.
"Itachi Uchiha? Kid, you're an Uchiha?" Itachi Uchiha nodded once, slowly. Blood was still spreading across the fresh towel. "Well, fuck me. What happened to you?"
"I'm getting him out of the country." Kakuzu poured the golden liquid and offered it to Itachi, who accepted and choked it down. "The Uchihas and their heir apparent seem to have been at odds for quite a while..."
The Uchihas had built Amergakure on a foundation of questionable business ventures and shady affiliations. It made sense: a city born rotten, lived rotten.
"Hmmm." Kakuzu lifted the towel and examined the wound. "We can't wait for treatment...Hidan, give me your phone..."
Fifteen minutes later, the three of them were on their way to the hospital. It was raining as they pulled up to the entrance, and there was someone waiting for them with a gurney. As Hidan helped Kakuzu lift the now-unconscious Itachi onto it, he noticed a wad of money pass quickly between Kakuzu and the man.
"Is everything ready, Kabuto?" said Kakuzu with a touch of irony as they entered the hospital.
"For what?" said Kabuto with a nasty chuckle. "I'll be consulting with a patient about a concussion for the next hour and a half..."
The hospital was dank and lit with yellow lights; Hidan, not entirely sure why he was there, took to wandering the hallways.
Kakuzu as a shady businessman never fails to fill me with glee. This was all I had written, but I believe the original plot included Nagato and Yahiko dying, leaving Konan with a purpose vacancy, so she falls in with Hidan and the Amegakure underworld, and becomes tangled up in the runaway Uchiha business. (Love me some Konan / Any Uchiha At All.)
That's my plot though. PM me if you want to take it and reshape it in your image.
Please?
Naruto and all affiliated characters do not belong to me, but to Masashi Kishimoto.