There seems to be a growing consensus, that the new R/R will NOT fit where the old one is, lest one go over a bump, and have the drive shaft collide with the R/R (the stock location is directly above the drive shaft). I suppose, one could move the bracket that holds the R/R and tip-over sensor, move that bracket up a tad, enough for the new R/R to clear.
I don't know how much work that would be. I looked at that too, and immediately dismissed that location. And pretty much anywhere else is going to extend the wiring significantly.