That's a big difference side to side. It's really odd. I'm curious why. I looked at some pics of the Tacoma set and they're slightly offset with the passenger side having a bit more preload (the passenger side being the one with the lower perch set a bit higher.) On the bottom of the lower spring perch they indicate which side they go on. Visually that looks like it has more difference left/right than the Tacoma. That would be consistent with KDSS lean caused by the cylinder on the driver's side.
Incidentally, on my fox factory series shocks I do have to set the passenger side about 1/2" higher to get the front to level side/side. Assuming those are identical side/side it would generally match. It's pretty unusual though to have that much weight difference side/side. I know the fuel tank could weigh around 200lb full. But that's less than 100lb, and it's on the wrong side.