Speaking about Ninjas, there is one that was cleaned few months ago awaiting for a rebuild (I thought about doing parallel builds for Ninja Coors and Shogun, but that would have taken much time and documentation would have been a nightmare, so I decided to do one build only today).
So : Ninjaaaaa!
As usual on those 4WD cars, it starts by the cells. Here you start by the rear gearbox, and more precisely by its front output (this car is targeted as light runner, and it will be ball raced).
Then you put this on the side of the rear gearbox. You may note here that the gearbox is following Ninja V1 specs : nylon small bevel gears, like the Samurai; as it is targeted for light run, I did not bother replacing them by metal bevel gear, I may decide to replace them later on (I'll do eventually when I'll be sure of the content of all chassis, which is not the case yet)
Both sides of the gearbox are then clubbed together, and side walls with arms fixations are completing the group
Shock towers and arms are joining the crew.
I've not decided yet what motor I'll put in this car...
After the rear gearbox the focus shift on the front gearbox, and more precisely with its ear input...
Front diff is added and the gearbox will get closed.
The front gearbox follow the same principle as the rear, with side walls around the gearbox including arms fixations and shock towers. I suspect Kuhiraha San had something modular in mind when he did this: Coors and Shogun have some distinctives elements there, and I think the arms fixation may have been thought for more possibilities...

(I forgot a picture here, but that's similar to the rear

)
Once both Rear and Front cells are ready, the focus shift to the center and the chassis : you'll add the steering servo and the the steering elements, and the top reinforcement of the chassis.
Once this is done, the rear cell joins the chassis (fixations are bottom and top on the sides and one on the top).
The front joins the chassis at next step with the shaft.
Next is to put the shocks on the chassis (I built them first

)
The bodyshell was trimmed quite a long ago (it always take less room trimmed). I will have to review the cut around the rear shocks.
I did not resist to put the car on wheels...
The tires here are not for this car, but they are going with the one arrived yesterday. I'll try to get the tires from the other car back for this one.